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GOES-8 (GOES-EAST) ROUTINE IMAGER SCHEDULE

4 April 1995


The basic schedule for GOES-8 calls for 6 frames per hour, with at least 4 frames per hour over the conterminous United States (CONUS) to determine cloud-tracked winds at 15-minute intervals.
The 6 basic frames per hour are: NOAA moves the start times of the frames around by a minute or two to accomodate other activities on the spacecraft.

There are 8 Full-Earth scans per day, occuring once every 3 hours, at 0245, 0545, 0845, 1145, 1445, 1745, 2045, and 2345 UTC, replacing the Canada-to-Brazil frames and supeseding the small CONUS and South American frames.

There also are 4 housekeeping episodes per day, each taking 10 minutes, scheduled at 0035, 0635, 1235, and 1835 UTC, supeseding the small South American frames at those times.

During Eclipse seasons, from mid-Feb to mid-Apr and from mid-Aug to mid-Oct, the system shuts down for 2 to 3 hours around local midnight, 0500 UTC.

There are a variety of maneuvers that affect Image Navigation and Registration (INR), including the 4 housekeeping episodes. Twice a year, mid-winter and mid-summer, the orbital inclination is corrected, which is a major perturbation to the INR system for a few days.

The weekly NOAA-Ops schedule lists the outages for solar intrusions, maneuvers, etc..


The observing schedule, hour-by-hour

UTC   SCAN_AREA

0002      (Full Earth continued)
0009      (Full Earth continued)
0015   Canada to Brazil
0032   CONUS
0039      (housekeeping)
0045   Canada to Brazil

0102   CONUS
0109   South America
0115   Canada to Brazil
0132   CONUS
0139   South America
0145   Canada to Brazil

0202   CONUS
0209   South America
0215   Canada to Brazil
0232   CONUS
0239   South America
0245   Full Earth

0302      (Full Earth continued)
0309      (Full Earth continued)
0315   Canada to Brazil
0332   CONUS
0339   South America
0345   Canada to Brazil

0402   CONUS
0409   South America
0415   Canada to Brazil
0432   CONUS
0439   South America
0445   Canada to Brazil

0502   CONUS
0509   South America
0515   Canada to Brazil
0532   CONUS
0539   South America
0545   Full Earth

0602      (Full Earth continued)
0609      (Full Earth continued)
0615   Canada to Brazil
0632   CONUS
0639      (housekeeping)
0645   Canada to Brazil

0702   CONUS
0709   South America
0715   Canada to Brazil
0732   CONUS
0739   South America
0745   Canada to Brazil

0802   CONUS
0809   South America
0815   Canada to Brazil
0832   CONUS
0839   South America
0845   Full Earth

0902      (Full Earth continued)
0909      (Full Earth continued)
0915   Canada to Brazil
0932   CONUS
0939   South America
0945   Canada to Brazil

1002   CONUS
1009   South America
1015   Canada to Brazil
1032   CONUS
1039   South America
1045   Canada to Brazil

1102   CONUS
1109   South America
1115   Canada to Brazil
1132   CONUS
1139   South America
1145   Full Earth

1202      (Full Earth continued)
1209      (Full Earth continued)
1215   Canada to Brazil
1232   CONUS
1239      (housekeeping)
1245   Canada to Brazil

1302   CONUS
1309   South America
1315   Canada to Brazil
1332   CONUS
1339   South America
1345   Canada to Brazil

1402   CONUS
1409   South America
1415   Canada to Brazil
1432   CONUS
1439   South America
1445   Full Earth

1502      (Full Earth continued)
1509      (Full Earth continued)
1515   Canada to Brazil
1532   CONUS
1539   South America
1545   Canada to Brazil

1602   CONUS
1609   South America
1615   Canada to Brazil
1632   CONUS
1639   South America
1645   Canada to Brazil

1702   CONUS
1709   South America
1715   Canada to Brazil
1732   CONUS
1739   South America
1745   Full Earth

1802      (Full Earth continued)
1809      (Full Earth continued)
1815   Canada to Brazil
1832   CONUS
1839      (housekeeping and new orbit)
1845   Canada to Brazil

1902   CONUS
1909   South America
1915   Canada to Brazil
1932   CONUS
1939   South America
1945   Canada to Brazil

2002   CONUS
2009   South America
2015   Canada to Brazil
2032   CONUS
2039   South America
2045   Full Earth

2102      (Full Earth continued)
2109      (Full Earth continued)
2115   Canada to Brazil
2132   CONUS
2039   South America
2145   Canada to Brazil

2202   CONUS
2209   South America
2215   Canada to Brazil
2232   CONUS
2239   South America
2245   Canada to Brazil

2302   CONUS
2309   South America
2315   Canada to Brazil
2332   CONUS
2339   South America
2345   Full Earth


APPROXIMATE SCAN AREAS:
"Canada to Brazil" scans 67N-20S, 120W-45W (at the Equator).
"CONUS" scans 60N-10N, 125W-60W (at 10N).
"South America" scans 20S-50S, 120W-30W (at 20S).
"Full Earth" scans 80N-80S, 150W-5W (at the Equator).

NOTES
NESDIS uploads new orbit parameters at 1835 UTC (midday).
"Housekeeping" can include attitude adjustments.
"Short Span Attitude Adjustments" can occur any time.