Orbit-by-Orbit

Microwave Derived Products (EDR)

Interface Control Document




Revised 4/30/96
By Vincent Tabor

Revised 10/06/97
By Chris Duda

TABLE OF CONTENTS

1.0    INTRODUCTION

1

    
2.0
    2.1.2    HEADER RECORD DESCRIPTION
4

            
            EDR Product Identification Block
5

            EDR Data Sequence Block
7

            Rev Header Data Description Block
9

            EDR Scan Header Data Description Block
18

            EDR Data Description Block
20

            Rev Header Data Block Format
29

    2.1.2.1     DATA RECORD FORMAT DESCRIPTION

31

            EDR Scan Header Block
33

            EDR Data Block Format
35

3.0    PROGRAMMER NOTE

38

LIST OF ACRONYMS

CEMSC            Central Environmental Satellite Computer System

DACU                Data Acquisition Control Unit

DEF                Data Exchange Format

EDR                Environmental Data Record

FNOC                Fleet Numerical Oceanography Center

HDS                Hitachi Data Systems

IDB                Intermediate Data Base

NESDIS            National Environmental Satellite, Data and Information Service

REV                Revolution

SSM/I                Special Sensor Microwave Imagery

1.0    INTRODUCTION
EDR data sets are formatted into the Shared Processing Data Exchange Format (DEF) at FNOC. They are transmitted to NESDIS via communication satellite, and given a data set name to identify it on the NESDIS Computer (CEMSCS). There are approximately 14 orbits acquired during a 24 hour period. Data for at least a 24 hour period but no more than a 48 hour period should be resident on the CEMSCS direct access storage devices at any given time. EDR data for four of the DMSP satellites [DMSP F-10(S4), F-11(S5), F-13(S-7), and F- 14(S-8)] is currently being keep on the CEMSCS.

Previous versions of the EDR documentation which refer to the Intermediate Database (IDB) should be amended. NESDIS no longer uses the IDB for processing or orbital occess. Rather, all DMSP EDR orbits are made available on the CEMSCS as 1300 length records. These orbital datasets may be accessed directly by users.

The basic format of the EDR dataset is one EDR Output Header Record followed by a series of records which each contain one scanline of data. Section 2.1.1 describes the format of the EDR Output Header Record, record #1. Section 2.1.2 describes the format of the scanline data, records #2-EOF.


2.1. 2    HEADER RECORD DESCRIPTION

The EDR Output Header Record contains six description blocks which are defined in terms of words consisting of a combination of 32-bits, 16-bits, and 8-bits.

Description Blocks

1.    EDR IDENTIFICATION BLOCK
2.    EDR DATA SEQUENCE BLOCK
3.    REV HEADER DATA DESCRIPTION BLOCK
4.    EDR SCAN HEADER DATA DESCRIPTION BLOCK
5.    EDR DATA DESCRIPTION BLOCK
6.    REV HEADER DATA BLOCK FORMAT

EDR Product Identification Block


Data Word  


Type  


Contents  


Comments  
1  
I*2  
Block Length  
Length of Block in Terms of I*2 Words (14)  
2  
Byte  
MODE  
Binary 8-bit Number (1)  
3  
Byte  
SUBMODE  
Binary 8-bit Number (1)  
4  
C*4  
Originator ID  
Four Character (FNOC)  
5  
C*1  
Classification  
One Character (U)  
6  
Byte  
File Lifetime  
Binary 8-bit Number (255)  
7  
C*10  
Product Identifier  
10 Characters TSMIEDR 10  
8  
I*2  
Year  
Binary Number  
9  
Byte  
Month  
Binary 8-bit Number  
10  
Byte  
Day  
Binary 8-bit Number  
11  
Byte  
Hour  
Binary 8-bit Number  
12  
Byte  
Minute  
Binary 8-bit Number  
13  
I*2  
Checksum  
Binary Number

 

EDR PRODUCT IDENTIFICATION BLOCK

BYTES
0-1   BLOCK LENGTH

14  

 
2-3   MODE

1  

SUBMODE

1  

 
4-5   CHAR. 1

F  

CHAR. 2

N  

 
6-7   CHAR. 3

O  

CHAR. 4

C  

ORIGINATOR
ID  
8-9   CLASSIFICATION

U  

FILE LIFETIME

255  

 
10-11   FILE INDICATOR

T  

CHAR. 2

S  

 
12-13   CHAR. 3

M  

CHAR. 4

I  

 
14-15   CHAR. 5

E  

CHAR. 6

D  

PRODUCT
IDENTIFIER  
16-17   CHAR. 7

R  

CHAR. 8    
18-19   CHAR. 9   CHAR. 10

8  

 
20-21   YEAR

(SET BY SMIDEF)  

 
22-23   MONTH

(SET BY SMIDEF)  

DAY

(SET BY SMIDEF)  

 
24-25   HOUR

(SET IN SMIDEF)  

MINUTE

(SET IN SMIDEF)  

 
26-27   CHECKSUM

(CAL. IN SMIDEF)
 

 



EDR Data Sequence Block

Data Word  
Type  
Contents  
Comments  
1   I*2   Block length   Length of block in term of I*2 Words (13)  
2   Byte   MODE   Binary 8-bit Number (3)  
3   Byte   SUBMODE   Binary 8-bit Number (19)  
4   I*2   Number of Loops   Three  
5   Byte   Start Number   Binary 8-bit Number  
6   Byte   Loop Number   Binary 8-bit Number (1)  
7   I*2   Number of Data Blocks   Binary 16-bit Number (1)  
8   Byte   End Number   Binary 8-bit Number  
9   Byte   Loop Number   Binary 8-bit Number  
10   Byte   Start Number   Binary 8-bit Number  
11   Byte   Loop Number   Binary 8-bit Number (2)  
12   I*2   Number of Data Blocks   HDR Data Block (3)  
13   Byte   Start Number   Binary 8-bit Number  
14   Byte   Loop Number   Binary 8-bit Number (3)  
15   I*2   Number of Data Blocks   Binary 16-bit Number (1)  
16   Byte   END Number   Binary 8-bit Number  
17   Byte   Loop Number   Binary 8-bit Number (3)  
18   Byte   End Number   Binary 8-bit Number  
19   Byte   Loop Number   Binary 8-bit Number (2)  
20   I*2   Checksum   Calc in SMIDEF  

EDR DATA SEQUENCE BLOCK

BYTES
0-1   BLOCK LENGTH

13  

 
2-3   MODE

3  

SUBMODE

19  

 
4-5   NUMBER OF LOOPS

3  

 
6-7   START

{  

LOOP NUMBER

1  

REV HEADER
BLOCK  
8-9   NUMBER
OF DATA BLOCKS

1  

 
10-11   END

}  

LOOP NUMBER

1  

 
12-13   START

{  

LOOP NUMBER

2  

 
14-15   NUMBER
OF DATA BLOCKS

(SET IN SMIDEF)  

 
16-17   START

{  

LOOP NUMBER

3  

HDR DATA
BLOCK  
18-19   NUMBER OF DATA BLOCKS

1  

 
20-21   END

}  

LOOP NUMBER

3  

 
22-23   END

}  

LOOP NUMBER

2  

 
24-25   CHECKSUM
(CALC. IN SMIDEF)   		 

Rev Header Data Description Block

Data Word
Type
Contents
Comments
1   I*2   Block length   Length of Block in Terms of I*2 Words (95)  
2   Byte   Mode   Binary 8-bit Number (3)  
3   Byte   Submode   Binary 8-bit Number (17)  
4   Byte   Number Elements   Binary 8-bit Number (15)  
5   Byte   Bytes/Section   Binary 8-bit Number (24)  
6   I*2   Number of Sections   Binary Number (1)  
7   C*4   Spacecraft ID   Character String "SCID"  
8   Byte   Start Byte   Binary 8-bit Number (4)  
9   Byte   Bytes/Element   Binary 8-bit Number (4)  
10   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (19)  
11   Byte   Mult. Mantissa   Binary 8-bit Number (1)  
12   Byte   Exponent   Binary 8-bit Number (0)  
13   I*2   Additive Constant   Binary Number (0)  
14   C*4   Rev/Orbit Number   Character String "REV#"  
15   Byte   Start Byte   Binary 8-bit Number (8)  
16   Byte   Bytes/Element   Binary 8-bit Number (4)  
17   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (19)  
18   Byte   Mult. Mantissa   Binary 8-bit Number (1)  
19   Byte   Exponent   Binary 8-bit Number (0)  
20   I*2   Additive Constant   Binary Number  
21   C*4   Julian Day Data Begins   Character String "BJLD"  
22   Byte   Start Byte   Binary 8-bit Number (12)  
23   Byte   Bytes/Element   Binary 8-bit Number (2)

 

24   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (51)  
25   Byte   Mult. Mantissa   Binary 8-bit Number (1)  
26   Byte   Exponent   Binary 8-bit Number (0)  
27   I*2   Additive Constant   Binary Number (0)  
28   C*4   Hour of Day Data Begins   Character String "BHR"  
29   Byte   Start Byte   Binary 8-bit Number (14)  
30   Byte   Bytes/Element   Binary 8-bit Number (1)  
31   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (50)  
32   Byte   Mult. Mantissa   Binary 8-bit Number (1)  
33   Byte   Exponent   Binary 8-bit Number (0)  
34   I*2   Additive Constant   Binary Number (0)  
35   C*4   Minute of Hour Data   Character String "BMN"
 
36   Byte   Start Byte   Binary 8-bit Number (15)  
37   Byte   Bytes/Element   Binary 8-bit Number (1)  
38   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (49)  
39   Byte   Mult. Mantissa   Binary 8-bit Number (1)  
40   Byte   Exponent   Binary 8-Bit Number (0)  
41   I*2   Additive Constant   Binary Number (0)  
42   C*4   Second of Min. Data Begins   Character String "BSEC"  
43   Byte   Start Byte   Binary 8-Bit Number (16)  
44   Byte   Bytes/Element   Binary 8-Bit Number (1)  
45   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (12)  
46   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
47   Byte   Exponent   Binary 8-Bit Number (0)  
48   I*2   Additive Constant   Binary Number (0)
 
49   C*4   Julian Day Data Ends   Character String "EJLD"  
50   Byte   Start Byte   Binary 8-Bit Number (17)  
51   Byte   Bytes/Element   Binary 8-Bit Number (2)  
52   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (51)  
53   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
54   Byte   Exponent   Binary 8-Bit Number (0)  
55   I*2   Additive Constant   Binary Number (0)  
56   C*4   Hour of Day Data Ends   Character String "EHR"  
57   Byte   Start Byte   Binary 8-Bit Number (19)  
58   Byte   Bytes/Element   Binary 8-Bit Number (1)  
59   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (50)  
60   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
61   Byte   Exponent   Binary 8-Bit Number (0)  
62   I*2   Additive Constant   Binary Number (0)  
63   C*4   Minute of Hour Data Ends   Character String "EMN"  
64   Byte   Start Byte   Binary 8-Bit Number (20)  
65   Byte   Bytes/Element   Binary 8-Bit Number (1)  
66   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (49)  
67   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
68   Byte   Exponent   Binary 8-Bit Number (0)  
69   I*2   Additive Constant   Binary Number (0)  
70   C*4   Second of Minute Data Ends   Character String "ESEC"  
71   Byte   Start Byte   Binary 8-Bit Number (21)
 
72   Byte   Bytes/Element   Binary 8-Bit Number (1)  
73   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (12)  
74   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
75   Byte   Exponent   Binary 8-Bit Number (0)  
76   I*2   Additive Constant   Binary Number (0)  
77   C*4   Day of Ascending Node   Character String "AJLD"  
78   Byte   Start Byte   Binary 8-Bit Number (22)  
79   Byte   Bytes/Element   Binary 8-Bit Number (2)  
80   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (51)  
81   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
82   Byte   Exponent   Binary 8-Bit Number (0)  
83   I*2   Additive Constant   Binary Number (0)  
84   C*4   Hour of Ascending Node   Character String "AHR"  
85   Byte   Start Byte   Binary 8-Bit Number (24)  
86   Byte   Bytes/Element   Binary 8-Bit Number (1)  
87   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (50)  
88   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
89   Byte   Exponent   Binary 8-Bit Number (0)  
90   I*2   Additive Constant   Binary Number (0)  
91   C*4   Minute of Ascending AMN (blank)   Character String Node  
92   Byte   Start Byte   Binary 8-Bit Number (25)  
93   Byte   Bytes/Element   Binary 8-Bit Number (1)  
94   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (49)  
95   Byte   Mult. Mantissa   Binary 8-Bit Number (1)
 
96   Byte   Exponent   Binary 8-Bit Number (0)  
97   I*2   Additive Constant   Binary Number (0)  
98   C*4   Second of Ascending Node   Character string "ASEC"  
99   Byte   Start Byte   Binary 8-Bit Number (26)  
100   Byte   Bytes/Element   Binary 8-Bit Number (1)  
101   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (12)  
102   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
103   Byte   Exponent   Binary 8-Bit Number (0)  
104   I*2   Additive Constant   Binary Number (0)  
105   C*4   Logical Satellite   Character String "LSI"  
106   Byte   Start Byte   Binary 8-Bit Number (27)  
107   Byte   Bytes/Element   Binary 8-Bit Number (1)  
108   I*2   Units Code   Combination of a Zero Filled Byte and Units Code (19)  
109   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
110   Byte   Exponent   Binary 8-Bit Number (0)  
111   I*2   Additive Constant   Binary Number (0)  
112   I*2   CheckSum   Binary Number  



BYTES                            BYTES
0-1   BLOCK LENGTH

95  

  30-31   ADDITIVE CONSTANT

0  

 
2-3   MODE
3   		SUBMODE 17     32-33   CHAR. 1
B   		CHAR. 2
J   		JULIAN DAY DATA BEGINS  
4-5   NUMBER
ELEMENTS
15   		BYTES/
SECTION
24   		  34-35   CHAR. 3

L  

CHAR. 4

D  

 
6-7   NUMBER OF SECTIONS

1  

  36-37   START
BYTE
12   		BYTES/
ELEMENTS
2   		 
8-9   CHAR. 1

S  

CHAR. 2

C  

SPACECRAFT ID   38-39   UNUSED

0  

UNITS
CODE
51   		 
10-11   CHAR. 3

I  

CHAR. 4

D  

  40-41   MULT.
MANTISSA
1   		EXPONENT

0  

 
12-13   START
BYTE
4   		BYTES/
ELEMENT S
4   		  42-43   ADDITIVE
CONSTANT
0   		 
14-15   UNUSED

0  

UNITS
CODE
19   		  44-45   CHAR. 1

B  

CHAR. 2

H  

HOUR OF DAY
DATA BEGINS  
16-17   MULT.
MANTISSA
1   		EXPONEN T

0  

  46-47   CHAR. 3

R  

CHAR. 4    
18-19   ADDITIVE
CONSTANT
0   		  48-49   START
BYTE
14   		BYTES/
ELEMENT
1   		 
20-21   CHAR. 1

R  

CHAR. 2

E  

REV/ORBIT
NUMBER   		50-51   UNUSED

0  

UNITS
CODE
50   		 
22-23   CHAR. 3

V  

CHAR. 4

#  

  52-53   MULT.
MANTISSA
1   		EXPONENT

0  

 
24-25   START
BYTE
8   		BYTES/
ELEMENT
4   		  54-55   ADDITIVE
CONSTANT
0   		 
26-27   UNUSED

0  

UNITS
CODE
19   		  56-57   CHAR. 1

B  

CHAR. 2

M  

MINUTE OF HOUR
DATA BEGINS  

28-29   		MULT.
MANTISSA
1   		EXPONEN T

0  

  58-59   CHAR. 3

N  

CHAR. 4    


BYTES                            BYTES
60-61   START
BYTE
15   		BYTES/
ELEMENT
1   		  90-91   ADDITIVE
CONSTANT

0  

 
62-63   UNUSED
0   		UNITS
CODE
49   		  92-93   CHAR. 1

E  

CHAR. 2

H  

HOUR OF DAY DATA BEGINS  
64-65   MULT.
MANTISSA
1   		EXPONENT

0  

  94-95   CHAR. 3

R  

CHAR. 4

 

 
66-67   ADDITIVE
CONSTANT
0   		  96-97   START
BYTE
19   		BYTES/
ELEMENTS
1   		 
68-69   CHAR. 1

B  

CHAR. 2

S  

SECOND OF MIN.
DATA BEGINS   		98-99   UNUSED

0  

UNITS
CODE
50   		 
70-71   CHAR. 3

E  

CHAR. 4

C  

  100-101   MULT.
MANTISSA
1   		EXPONENT

0  

 
72-73   START
BYTE
16   		BYTES/
ELEMENTS
1   		  102-103   ADDITIVE
CONSTANT
0   		 
74-75   UNUSED

0  

UNITS
CODE
12   		  104-105   CHAR. 1

B  

CHAR. 2

H  

HOUR OF DAY
DATA BEGINS  
76-77   MULT.
MANTISSA
1   		EXPONENT

0  

  106-107   CHAR. 3

N  

CHAR. 4    
78-79   ADDITIVE
CONSTANT
0   		  108-109   START
BYTE
20   		BYTES/
ELEMENT
1   		 
80-81   CHAR. 1

E  

CHAR. 2

J  

JULIAN DAY DATA BEGINS   110-111   UNUSED

0  

UNITS
CODE
49   		 
82-83   CHAR. 3

L  

CHAR. 4

D  

  112-113   MULT.
MANTISSA
1   		EXPONENT

0  

 
84-85   START
BYTE
17   		BYTES/
ELEMENT
2   		  114-115   ADDITIVE
CONSTANT
0   		 
86-87   UNUSED

0  

UNITS
CODE
51   		  116-117   CHAR. 1

E  

CHAR. 2

S  

SECOND OF MINUTE DATA ENDS  
88-89   MULT.
MANTISSA
1   		EXPONENT

0  

  118-119   CHAR. 3

E  

CHAR. 4

C  

 



BYTES                            BYTES
120-121   START
BYTE
21   		BYTES/
ELEMENT
1   		  150-151   ADDITIVE
CONSTANT

0  

 
122-123   UNUSED
0   		UNITS
CODE
12   		  152-153   CHAR. 1

A  

CHAR. 2

M  

MINUTE OF ASCENDING NODE  
124-125   MULT.
MANTISSA
1   		EXPONENT

0  

  154-155   CHAR. 3

N  

CHAR. 4

 

 
126-127   ADDITIVE
CONSTANT
0   		  156-157   START
BYTE
25   		BYTES/
ELEMENTS
1   		 
128-129   CHAR. 1

A  

CHAR. 2

J  

DAY OF ASCENDING NODE   158-159   UNUSED

0  

UNITS
CODE
49   		 
130-131   CHAR. 3

L  

CHAR. 4

D  

  160-161   MULT.
MANTISSA
1   		EXPONENT

0  

 
132-133   START
BYTE
22   		BYTES/
ELEMENTS
2   		  162-163   ADDITIVE
CONSTANT
0   		 
134-135   UNUSED

0  

UNITS
CODE
51   		  164-165   CHAR. 1

A  

CHAR. 2

S  

SECOND OF ASCENDING NODE  
136-137   MULT.
MANTISSA
1   		EXPONENT

0  

  166-167   CHAR. 3

E  

CHAR. 4

C  

 
138-139   ADDITIVE
CONSTANT
0   		  168-169   START
BYTE
26   		BYTES/
ELEMENT
1   		 
140-141   CHAR. 1

A  

CHAR. 2

H  

HOUR OF ASCENDING NODE   170-171   UNUSED

0  

UNITS
CODE
12   		 
142-143   CHAR. 3

R  

CHAR. 4

 

  172-173   MULT.
MANTISSA
1   		EXPONENT

0  

 
144-145   START
BYTE
24   		BYTES/
ELEMENT
1   		  174-175   ADDITIVE
CONSTANT
0   		 
146-147   UNUSED

0  

UNITS
CODE
50   		  176-177   CHAR. 1

L  

CHAR. 2

S  

LOGICAL SATELLITE ID  
148-149   MULT.
MANTISSA
1   		EXPONENT

0  

  178-179   CHAR. 3

I  

CHAR. 4

 

 
Rev Header Data Description Block (continued)

BYTES
180-181   START
BYTE
27   		BYTES/
ELEMENT
1  
182-183   UNUSED

0  

UNITS
CODE
19  
184-185   MULT.
MANTISSA
1   		EXPONENT

0  

186-187   ADDITIVE
CONSTANT
0  
188-189   CHECKSUM

(CALC. IN SMIDEF)  



EDR Scan Header Data Description Block

Data Word
Type
Contents
Comments
1   I*2   Block length   Length of block in term of I*2 words (17)  
2   Byte   MODE   Binary 8-bit Number (3)  
3   Byte   SUBMODE   Binary 8-bit Number (17)  
4   Byte   Number of Elements   Binary 8-bit Number (2)  
5   Byte   Bytes per Section   Binary 8-bit Number (6)  
6   I*2   Number of Sections   Binary Number (1)  
7   C*4   Counter   Character String "CNTR"  
8   Byte   Start Byte   Binary 8-bit Number (4)  
9   Byte   Bytes/Element   Binary 8-bit Number (2)  
10   I*2   Unit Code   Combination of a Zero Filled Byte and the Unit Code (19)  
11   Byte   Mult. Mantissa   Binary 8-bit Number (1)  
12   Byte   Exponent   Binary 8-bit Number (0)  
13   I*2   Additive Constant   Binary Number  
14   C*4   Bscan Start Time   Character String "BSTM"  
15   Byte   Start Byte   Binary 8-bit Number (6)  
16   Byte   Bytes/Element   Binary 8-bit Number (4)  
17   I*2   Units Code   Combination of a Zero Filled Byte and the Unit Code (12)  
18   Byte   Mult. Mantissa   Binary 8-bit Number (1)  
19   Byte   Exponent   Binary 8-bit Number (0)  
20   I*2   Additive Constant   Binary Number  
21   I*2   Checksum   Calculated in "SMIDEF"  


EDR SCAN HEADER DATA DESCRIPTION BLOCK

BYTES                            BYTES
0-1   BLOCK LENGTH

17  


 

30-31   ADDITIVE
CONSTANT
0   		 
2-3   MODE

3  

SUBMODE

17  

  32-33   CHECKSUM

(CAL. IN SMIDEF)  

 
4-5   NUMBER
ELEMENT S
2   		BYTES/
SECTION
6   		         
6-7   NUMBER OF SECTIONS
1   		         
8-9   CHAR. 1

C  

CHAR. 2

N  

COUNTER          
10-11   CHAR. 3

T  

CHAR. 4

R  

         
12-13   START
BYTE
4   		BYTES/
ELEMENTS
2   		       
14-15   UNUSED

0  

UNITS
CODE
19   		         
16-17   MULT.
MANTISSA
1   		EXPONENT

0  

         
18-19   ADDITIVE
CONSTANT
0   		         
20-21   CHAR. 1

B  

CHAR. 2

S  

B-SCAN
START TIME   		       
22-23   CHAR. 3

T  

CHAR. 4

M  

         
24-25   START
BYTE

6  

BYTES/
ELEMENT

4  

       
26-27   UNUSED

0  

UNITS
CODE
12   		         
28-29   MULT.
MANTISSA
1   		EXPONENT

0  

         


EDR Data Description Block

Data Word
Type
Contents
Comments
1   I*2   Block length   Length of Block in Terms of I*2 Words (107)  
2   Byte   Mode   Binary 8-Bit Number (3)  
3   Byte   Submode   Binary 8-Bit Number (17)  
4   Byte   Number Elements   Binary 8-Bit Number (17)  
5   Byte   Bytes/Selection   Binary 8-Bit Number (20)  
6   I*2   Number of Sections   Binary Number (62)  
7   C*4   Counter   Character String "CNTR"  
8   Byte   Start Byte   Binary 8-Bit Number (4)  
9   Byte   Bytes/Element   Binary 8-Bit Number (2)  
10   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (19)  
11   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
12   Byte   Exponent   Binary 8-Bit Number (0)  
13   I*2   Additive Constant   Binary Number (0)  
14   C*4   Latitude   Character String "LAT"  
15   Byte   Start Byte   Binary 8-Bit Number (6)  
16   Byte   Bytes/Element   Binary 8-Bit Number (2)  
17   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (45)  
18   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
19   Byte   Exponent   Binary 8-Bit Number (-2)  
20   I*2   Additive Constant   Binary Number (0)  
21   C*4   Longitude   Character String "LON"  
22   Byte   Start Byte   Binary 8-Bit Number (8)  
23   Byte   Bytes/Element   Binary 8-Bit Number (2)  
24   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (45)  
25   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
26   Byte   Exponent   Binary 8-Bit Number (-2)  
27   I*2   Additive Constant   Binary Number (0)  
28   C*4   Surface Type   Character String "STYP"  
29   Byte   Start Byte   Binary 8-Bit Number (10)  
31   Byte   Bytes/Element   Binary 8-Bit Number (1)  
30   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (19)  
32   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
33   Byte   Exponent   Binary 8-Bit Number (0)  
34   I*2   Additive Constant   Binary Number (0)  
35   C*4   Cloud Water   Character String "CW"  
36   Byte   Start Byte   Binary 8-Bit Number (11)  
37   Byte   Bytes/Element   Binary 8-Bit Number (1)  
38   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (22)  
39   Byte   Mult. Mantissa   Binary 8-Bit Number (5)  
40   Byte   Exponent   Binary 8-Bit Number (-2)  
41   I*2   Additive Constant   Binary Number (0)  
42   C*4   Spare   Character String "SPAR"  
43   Byte   Start Byte   Binary 8-Bit Number (12)  
44   Byte   Bytes/Element   Binary 8-Bit Number (1)  
45   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (22)  
46   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
47   Byte   Exponent   Binary 8-Bit Number (-1)  
48   I*2   Additive Constant   Binary Number (0)  
49   C*4   Rain Rate   Character String "RR"  
50   Byte   Start Byte   Binary 8-Bit Number (13)  
51   Byte   Bytes/Element   Binary 8-Bit Number (1)  
52   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (62)  
53   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
54   Byte   Exponent   Binary 8-Bit Number (0)  
55   I*2   Additive Constant   Binary Number (0)  
56   C*4   Surface Wind   Character String "SW"  
57   Byte   Start Byte   Binary 8-Bit Number (14)  
58   Byte   Bytes/Element   Binary 8-Bit Number (1)  
59   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (4)  
60   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
61   Byte   Exponent   Binary 8-Bit Number (-1)  
62   I*2   Additive Constant   Binary Number (0)  
63   C*4   Surface Moisture   Character String "SM"  
64   Byte   Start Byte   Binary 8-Bit Number (15)  
65   Byte   Bytes/Element   Binary 8-Bit Number (1)  
66   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (39)  
67   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
68   Byte   Exponent   Binary 8-Bit Number (0)  
69   I*2   Additive Constant   Binary Number (0)  
70   C*4   Ice Concentration   Character String "IC"  
71   Byte   Start Byte   Binary 8-Bit Number (16)  
72   Byte   Bytes/Element   Binary 8-Bit Number (1)  
73   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (20)  
74   Byte   Mult. Mantissa   Binary 8-Bit Number (5)  
75   Byte   Exponent   Binary 8-Bit Number (0)  
76   I*2   Additive Constant   Binary Number (0)  
77   C*4   Ice Age   Character String "IA"  
78   Byte   Start Byte   Binary 8-Bit Number (17)  
79   Byte   Bytes/Element   Binary 8-Bit Number (1)  
80   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (19)  
81   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
82   Byte   Exponent   Binary 8-Bit Number (0)  
83   I*2   Additive Constant   Binary Number (0)  
84   C*4   Ice Edge   Character String "IE"  
85   Byte   Start Byte   Binary 8-Bit Number (18)  
86   Byte   Bytes/Element   Binary 8-Bit Number (1)  
87   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (19)  
88   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
89   Byte   Exponent   Binary 8-Bit Number (0)  
90   I*2   Additive Constant   Binary Number (0)  
91   C*4   Water Vapor Ocean   Character String "WV"  
92   Byte   Start Byte   Binary 8-Bit Number (19)  
93   Byte   Bytes/Element   Binary 8-Bit Number (1)  
94   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (22)  
95   Byte   Mult. Mantissa   Binary 8-Bit Number (5)  
96   Byte   Exponent   Binary 8-Bit Number (-1)  
97   I*2   Additive Constant   Binary Number (0)  
98   C*4   Surface Temp.   Character string "TMPS"  
99   Byte   Start Byte   Binary 8-Bit Number (20)  
100   Byte   Bytes/Element   Binary 8-Bit Number (1)  
101   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (1)  
102   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
103   Byte   Exponent   Binary 8-Bit Number (0)  
104   I*2   Additive Constant   Binary Number (180)  
105   C*4   Snow Depth   Character String SD  
106   Byte   Start Byte   Binary 8-Bit Number (21)  
107   Byte   Bytes/Element   Binary 8-Bit Number (1)  
108   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (39)  
109   Byte   Mult. Mantissa   Binary 8-Bit Number (5)  
110   Byte   Exponent   Binary 8-Bit Number (0)  
111   I*2   Additive Constant   Binary Number (0)  
112   C*4   Rain Flag   Character String "RFLG"  
113   Byte   Start Byte   Binary 8-Bit Number (19)  
114   Byte   Bytes/Element   Binary 8-Bit Number (1)  
115   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (22)  
116   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
117   Byte   Exponent   Binary 8-Bit Number (0)  
118   I*2   Additive Constant   Binary Number (0)  
119   C*4   EDR Surface Type   Character String "ETYP"  
120   Byte   Start Byte   Binary 8-Bit Number (23)  
121   Byte   Bytes/Element   Binary 8-Bit Number (1)  
122   I*2   Units Code   Combination of a Zero Filled Byte and Unit Code (19)  
123   Byte   Mult. Mantissa   Binary 8-Bit Number (1)  
124   Byte   Exponent   Binary 8-Bit Number (0)  
125   I*2   Additive Constant   Binary Number (0)  
126   C*4   CheckSum   Binary Number  


                

BYTES                            BYTES

0-1   BLOCK LENGTH

107  

  30-31   ADDITIVE
CONSTANT
0   		 
2-3   MODE
3   		SUBMODE
17   		  32-33   CHAR. 1
L   		CHAR. 2
0   		LONGITUDE  
4-5   NUMBER
ELEMENTS
17   		BYTES/
SECTION
20   		  34-35   CHAR. 3

N  

CHAR. 4    
6-7   NUMBER OF SECTIONS

62  

  36-37   START
BYTE
8   		BYTES/
ELEMENTS
2   		 
8-9   CHAR. 1

C  

CHAR. 2

N  

COUNTER   38-39   UNUSED

0  

UNITS
CODE
45   		 
10-11   CHAR. 3

T  

CHAR. 4

R  

  40-41   MULT.
MANTISSA
1   		EXPONENT

-2  

 
12-13   START
BYTE
4   		BYTES/
ELEMENTS
2   		  42-43   ADDITIVE
CONSTANT
0   		 
14-15   UNUSED

0  

UNITS
CODE
19   		  44-45   CHAR. 1

S  

CHAR. 2

T  

SURFACE TYPE  
16-17   MULT.
MANTISSA
1   		EXPONENT

0  

  46-47   CHAR. 3

Y  

CHAR. 4

P  

 
18-19   ADDITIVE
CONSTANT
0   		  48-49   START
BYTE
10   		BYTES/ELE MENT
1   		 
20-21   CHAR. 1

L  

CHAR. 2

A  

LATITUDE   50-51   UNUSED

0  

UNITS
CODE
19   		 
22-23   CHAR. 3

T  

CHAR. 4     52-53   MULT.
MANTISSA
1   		EXPONENT

0  

 
24-25   START
BYTE
6   		BYTES/
ELEMENT
2   		  54-55   ADDITIVE
CONSTANT
0   		 
26-27   UNUSED

0  

UNITS
CODE
45   		  56-57   CHAR. 1

C  

CHAR. 2

W  

CLOUD
WATER  
28-29   MULT.
MANTISSA
1   		EXPONENT
-2   		  58-59   CHAR. 3   CHAR. 4    


BYTES                            BYTES
60-61   START
BYTE
11   		BYTES/
ELEMENT
1   		  90-91   ADDITIVE
CONSTANT
0   		 
62-63   UNUSED

0  

UNITS
CODE
22   		  92-93   CHAR. 1

S  

CHAR. 2

W  

SURFACE
WIND  
64-65   MULT.
MANTISSA
5   		EXPONENT

-2  

  94-95   CHAR. 3   CHAR. 4    
66-67   ADDITIVE
CONSTANT
0   		  96-97   START
BYTE
14   		BYTES/
ELEMENTS
1   		 
68-69   CHAR. 1

S  

CHAR. 2

P  

SPARE   98-99   UNUSED

0  

UNITS
CODE
4   		 
70-71   CHAR. 3

A  

CHAR. 4

R  

  100-101   MULT.
MANTISSA
1   		EXPONENT

0  

 
72-73   START
BYTE
12   		BYTES/
ELEMENTS
1   		  102-103   ADDITIVE
CONSTANT
0   		 
74-75   UNUSED

0  

UNITS
CODE
22   		  104-105   CHAR. 1

S  

CHAR. 2

M  

SURFACE MOISTURE  
76-77   MULT.
MANTISSA
1   		EXPONENT

-1  

  106-107   CHAR. 3   CHAR. 4    
78-79   ADDITIVE
CONSTANT
0   		  108-109   START
BYTE
15   		BYTES/
ELEMENT
1   		 
80-81   CHAR. 1

R  

CHAR. 2

R  

RAINRATE   110-111   UNUSED

0  

UNITS
CODE
19   		 
82-83   CHAR. 3   CHAR. 4     112-113   MULT.
MANTISSA
1   		EXPONENT

0  

 
84-85   START
BYTE
13   		BYTES/
ELEMENT
1   		  114-115   ADDITIVE
CONSTANT
0   		 
86-87   UNUSED

0  

UNITS
CODE
62   		  116-117   CHAR. 1

I  

CHAR. 2

C  

ICE CONCENTRATIO N  
88-89   MULT.
MANTISSA
1   		EXPONENT

0  

  118-119   CHAR. 3   CHAR. 4    




BYTES                            BYTES
120-121   START
BYTE
16   		BYTES/
ELEMENT
1   		  150-151   ADDITIVE
CONSTANT
0   		 
122-123   UNUSED

0  

UNITS
CODE
19   		  152-153   CHAR. 1

W  

CHAR. 2

V  

WATER VAPOR OCEAN  
124-125   MULT.
MANTISSA
1   		EXPONENT

0  

  154-155   CHAR. 3   CHAR. 4    
126-127   ADDITIVE
CONSTANT
0   		  156-157   START
BYTE
19   		BYTES/
ELEMENTS
1   		 
128-129   CHAR. 1

I  

CHAR. 2

A  

ICE AGE   158-159   UNUSED

0  

UNITS
CODE
22   		 
130-131   CHAR. 3   CHAR. 4     160-161   MULT.
MANTISSA
5   		EXPONENT

-1  

 
132-133   START
BYTE

17  

BYTES/ELE MENTS

1  

  162-163   ADDITIVE
CONSTANT
0   		 
134-135   UNUSED

0  

UNITS
CODE
19   		  164-165   CHAR. 1

T  

CHAR. 2

M  

SURFACE
TEMP.  
136-137   MULT.
MANTISSA
1   		EXPONENT

0  

  166-167   CHAR. 3

P  

CHAR. 4

S  

 
138-139   ADDITIVE
CONSTANT
0   		  168-169   START
BYTE
20   		BYTES/
ELEMENT
1   		 
140-141   CHAR. 1

I  

CHAR. 2

E  

ICE EDGE   170-171   UNUSED

0  

UNITS
CODE
1   		 
142-143   CHAR. 3   CHAR. 4     172-173   MULT.
MANTISSA
1   		EXPONENT

0  

 
144-145   START
BYTE
18   		BYTES/
ELEMENT
1   		  174-175   ADDITIVE
CONSTANT
180   		 
146-147   UNUSED

0  

UNITS
CODE
19   		  176-177   CHAR. 1

S  

CHAR. 2

P  

SPARE  
148-149   MULT.
MANTISSA
1   		EXPONENT

0  

  178-179   CHAR. 3

A  

CHAR. 4

R  

 



BYTES                            BYTES
180-181   START
BYTE
21   		BYTES/
ELEMENT
1   		  210-211   ADDITIVE
CONSTANT
0   		 
182-183   UNUSED

0  

UNITS
CODE
8   		  212-213   CHECKSUM

(CAL. IN SMIDEF)  

 
184-185   MULT.
MANTISSA
1   		EXPONENT

0  

         
186-187   ADDITIVE
CONSTANT
0   		         
188-189   CHAR. 1

R  

CHAR. 2

F  

RAIN FLAG          
190-191   CHAR. 3

L  

CHAR. 4

G  

         
192-193   START
BYTE
22   		BYTES/
ELEMENTS
1   		       
194-195   UNUSED

0  

UNITS
CODE
22   		         
196-197   MULT.
MANTISSA
1   		EXPONENT

0  

         
198-199   ADDITIVE
CONSTANT
0   		         
200-201   CHAR. 1

E  

CHAR. 2

T  

EDR SURFACE TYPE          
202-203   CHAR. 3

Y  

CHAR. 4

P  

         
204-205   START
BYTE
23   		BYTES/
ELEMENT
1   		       
206-207   UNUSED

0  

UNITS
CODE
19   		         
208-209   MULT.
MANTISSA
1   		EXPONENT

0  

         

Rev Header Data Block Format

Data Word
Type
Contents
Comments
1   I*2   Block length   Length of block in terms of I*2 Words (15)  
2   Byte   Mode   Binary 8-Bit Number  
3   Byte   Submode   String of 4 Character  
4   I*4   Spacecraft ID   Two 16-Bit Words  
5   I*4   Revolution/Orbit   Binary 32-Bit Number  
6   I*2   Julian day Data Begins   Binary 8-Bit Number  
7   Byte   HR. Data Begins   Binary 8-Bit Number  
8   Byte   Min. Data Begins   Binary 8-Bit Number  
9   Byte   Sec. Data Begins   Binary 8-Bit Number  
10   Byte   Day Data Ends (1)   Binary 8-Bit Number  
11   Byte   Day Data Ends (2)   Binary 8-Bit Number  
12   Byte   HR. Data Ends   Binary 8-Bit Number  
13   Byte   Min. Data Ends   Binary 8-Bit Number  
14   Byte   Sec. Data Ends   Binary 8-Bit Number  
15   I*2   Julian day of First   Binary 16-Bit Number
 
16   Byte   HR. First A.N.   Binary 8-Bit Number  
17   Byte   Min. First A.N.   Binary 8-Bit Number  
18   Byte   Sec. First A.N.   Binary 8-Bit Number  
19   Byte   Logical Satellite Id   Binary 8-Bit Number  
20   I*2   Checksum   Binary 16-Bit Number  

REV HEADER DATA BLOCK FORMAT

BYTES
0-1  
BLOCK LENGTH
 
2-3  
BLOCK ID
 
4-7  
SPACECRAFT ID
 
8-11  
REVOLUTION/
ORBIT NUMBER
 
12-13  
JULIAN DAY
DATA BEGINS
 
14-15   HR. DATA BEGINS   MIN. DATA BEGINS  
16-17   SEC. DATA BEGINS   DAY DATA
ENDS (1)  
18-19   DAY DATA
ENDS (2)   		HR. DATA ENDS  
20-21   MIN. DATA
ENDS   		SEC. DATA ENDS  
22-23   JULIAN DAY OF 1ST
ASCENDING NODE  
24-25   HR. 1ST
A.N.   		MIN. 1ST
A.N.  
26-27   SEC. 1ST
A.N.   		LOGICAL
SAT. ID  
28-29
  		CHECKSUM
 


2.1. 2.1    DATA RECORD FORMAT DESCRIPTION

The data record consists of a Scan Header Block and an EDR Data Block and found in records 2 through the end of the data set (see 2.1.3).

The EDR Scan Header has the Scan Counter which is a binary number (1 through 1724) and the B-SCAN start time is in minutes from the beginning of the day (0 to 86,400). Note: There are no A-SCAN times associated with these data sets.

The Data Block format is based upon 64 view spots per SCAN and contains a Latitude/Longitude value along with 14 parameters of which one is a spare. All parameters such as ice concentration of 0 at the Equator are available for each of the view spots.

                                RECORD 1
EDR OUTPUT DATA RECORD

1300 Bytes
Product
ID
Block

 

Data
Sequence
Block   		Data
Description
Block

Pass HRD  

Data
Description
Block

Scan HDR  

Data
Description
Block

EDR  

Data
Block

Pass HRD  

Zero
Fill  
28        26        190         34 214        30        778

                         RECORD 2 to END OF FILE     
IDB OUTPUT DATA RECORD
                                     
 Scan Header Scan Data Fill                     

12 BYTES

 


1286 BYTES  


2 BYTE FILL  


EDR Scan Header Block

Data Word
Type
Contents
Comments
1   I*2   Block Length   Length of Block in Terms of Words (6)  
2   Byte   Mode   8-Bit Byte  
3   Byte   SUBMODE   8-Bit Byte  
4   I*2   Scan Counter   Binary 16-Bit Word  
5   I*4   Bscan Start Time   Binary 32-Bit Number (seconds)  
6   I*2   Checksum   Binary 16-Bit Word  


EDR SCAN HEADER BLOCK FORMAT

BYTES

0-1  
BLOCK LENGTH
 

2-3  
BLOCK ID
 

4-5  
SCAN COUNTER
 

6-9  
B-SCAN
START TIME
 

10-11  
CHECKSUM
 


EDR Data Block Format

Data Word
Type
Contents
Comments
1   I*2   Block Length   Length of Block in Terms of Words (623)  
2   Byte   Mode   8-Bit Byte  
3   Byte   Submode   8-Bit Byte  
4   I*2   All Scene Station Counter   8-Bit Byte  
5   I*2   Latitude   Scene Station Latitude 1X10 to the power of -2 (1)  
6   I*2   Longitude   Scene Station Longitude 1X10 to the power of -2 (2)  
7   Byte   Surface Tag   Binary 8-Bit Number (3)  
8   Byte   Cloud Water   Cloud Water Over Ocean 5X10 to the power of -2 Kilogram per Cubic Meter  
9   Byte   Spare   Binary 8-Bit Number (0)  
10   Byte   Rain Rate   Rain Rate in mm per hour  
11   Byte   Wind Speed   Surface Wind Speed Over the Ocean meters per sec.  
12   Byte   Soil Moisture   Soil Moisture in mm  
13   Byte   Ice Concentration   Sea Ice Concentration  
14   Byte   Ice Age   Sea Ice Age (4)  
15   Byte   Ice Edge   Sea Ice Flag (5)  
16   Byte   Water Vapor   Water Vapor over the Ocean 5 x10 to the power of -1 Kilogram per square meter  
17   Byte   Surface Temperature   Surface Temperature degree Kelvin minus 180  
18   Byte   Snow Depth   Snow depth 5x 10 to the power of 1 in mm  
19   Byte   Rain Flag   Binary 8-Bit Number (0-3) representing
wind speed accuracy  
20   Byte   Cal. Surface Type   Calculated Surface Type (6)  
21   Repeat   Bytes   Repeat Word 4 to 20 63 times  
22   I*2   Checksum   Binary 16-Bit Word  

EDR DATA FORMAT BLOCK

BYTES
0-1   BLOCK LENGTH

623  

2-3   BLOCK ID
 
4-5   ALL SCENE STATION COUNTER
 
6-7   LATITUDE
 
8-9   LONGITUDE
 
10-11   SURFACE
TAG   		CLOUD
WATER  
12-13   SPARE   RAIN
RATE  
14-15   WIND
SPEED   		SOIL
MOISTURE  
16-17   ICE
CONC.   		ICE
AGE  
18-19   ICE
EDGE   		WATER
VAPOR  
20-21   SURFACE
TEMP.   		SPARE  
22-23   RAIN
FLAG   		CALC. S.
TYPE  
24-1283   (REPEAT BYTES 4-23 63 TIMES)
 
1284-1285
  		CHECKSUM
 

NOTE:

1.    Latitudes range from 00000 (South Pole) to 180000 (North Pole) with the Equator     being 09000.

2.    Longitudes range from 00000 Greenwich going East to 36000 Greenwich.

3.    0 is land; 1 is vegetation covered land; 3 is multiyear ice; 4 is possible ice; 5 is     ocean; and 6 is coast.

4.    0 is First Year Ice and 1 is Mulit-Year ICE.

5.    0 is no edge present and 1 is edge present.

6.    1 is vegetation; 3 is Ice; 5 is Ocean; 6 is Coast; 7 is flooded condition; 8 is dense     vegetation; 9 is Dense Agriculture     Crops; 10 is Dry Arable Soil; 11 is moist soil; 12     is semi-Arid Surface; 13 is Desert; 14 is precipitation over vegetation; 15 is          precipitation over soil, 16 is composite vegetation-water; 17 is composite soil-    water- wet soil; 18 is dry snow; 19 is wet snow; and 20 is Refrozen Snow.

3.0    PROGRAMMERS NOTE: How to obtain several of the important parameters for     processing an orbit.

The year of the date is found in one place only. The first record of each sequence in 16-bit word 11 (bytes 21,22).

Times associated with the data;

Starting Julian Day 16 bit word 253 in (Rev Header Block).
Starting Hour 8-bit word (byte) 507 in (Rev Header Block).
Starting Minute 8-bit word (byte) 508 in (Rev Header Block).
Starting Second 8-bit word (byte) 509 in (Rev Header Block).

Ending Hour 8-bit word (byte) 512
Ending Minute 8-bit word (byte) 513
Ending Second 8-bit word (byte) 514

The number of data blocks (scan lines) can be found in 16 bit word 22 (bytes 43, 44) of the directory record.

The orbit number is given only once and is in 32-bit word 126; or 16-bit word 252 (bytes 503, 504) of the directory record.

The parameters of time, latitude and longitude of the data records need special consideration.

The time are given in terms of seconds during the day of zero to 86,400. It appears that a data set will not extend beyond a day boundary.

The Latitudes are in terms of 0 degrees at the South Pole to 90 degrees at the Equator and 180 degrees at the North Pole. The actual binary numbers in the data set are scaled by 100 (e.g. Equator is 9000).

The Longitudes are in terms of 0 to 360 degrees and are also scaled by 100. Computation of the longitude is complicated because numbers as great as 36,000 extend into the sign bit of a 16 bit word making the number negative. It will have to be treated as an unsigned integer.

EDR SHARED PROCESSING FRAME INPUT
12,798 Byte Field  
                                    12,798

FIRST FRAME
Product ID
Block   		Data Sequence Block   Data Description Block

Pass HRD  

Data Description Block

Scan HDR  

Data Description Block

EDR  

Data Block

Pass HRD  

Data Block

Scan HRD  

Data Block

EDR  

Data Block

Scan HDR  

Data Block

EDR  

Data Block

Scan HDR  

Fill "A5"  
28   26   190   34   214   30   12   1286   12   1286   12   582  

SECOND FRAME
Data
Block

EDR  

Data
Block

Scan HRD  

Data
Block

EDR  

Data
Block

Scan HRD  

Data
Block

EDR  

Data
Block

Scan HRD  

Data
Block

EDR  

Data
Block

Scan HRD  

Fill
"A5"  
1286   12   1286   12   1286   12   1286   12   1116  

LAST FRAME
Data
Block

EDR  

Data
Block

Scan HRD  

  Data
Block

Scan HRD  

Data
Block

EDR  

End
Product
Block   		"Zero"
Fill  
1286   12     12   1286   6   X  

NOTE: The 12/1286 Bytes pattern repeats 9 times.

Converted by Chris Duda