NOAA-15, AVHRR, Instrument Resynch, Implementation Date: 21 April

4:10 PM
Subject: NOAA-15, AVHRR, Instrument Resynch, Implementation Date: 21 April
2004- Issued: Date issued 21 April 2004 time issued 2010

AVHRR Resynch to remove barcodes

Date/Time(UTC) Message Issued:
21 April 2004 20:10 UTC

Satellite(s) Involved:

Instrument(s) Involved:

Product(s) Involved/Affected:
ALL/ Scan line dropout

Date/Time(UTC) of Initial Implementation:
21 April 2004, 23:36 UTC

Details/Specifics of Change:
SOCC has reported re-occurance of the barcode pattern in the AVHRR imagery
for NOAA-16. Once again a MIRP rephase will be required.. the rephase will
occur at the implementation time indicated above in this message..

Users will see scan line drop outs when the rephase occurs. Checking "bit
1: resync occurred on this frame" in the data record quality indicators will
tell you when the rephase occurs. "bit 29: data gap precedes this scan"
indicates the gap created by the rephase in the scanline after it occurs.

Contact Person(s) Name/Email/Phone Number for Questions:
Emily Harrod
30-457-5247 ext 117

Cecil Paris
301-457-5247 ext 129

Web site(s) that contain other relevant information (where applicable): - History of level 1B
notices - All user notices - SOCC polar satellites status - SOCC morning reports