Minimize Cycles 18-28


Ers2 Wind Scatterometer L2 - Cycles 18-28

The following table gives the number of orbits available per cycle and the number of explained and unexplained missing orbits. Explained missing orbits cannot be recovered because is effectively data lost due to platform/instrument anomalies, and acquisition errors. Unexplained missing orbits might be recovered during next reprocessing campaign and are mainly due to corruption occurred during the transcription processes of the raw telemetry data from tape units to hard disks.


  Unexplained Missing orbits
  Missing orbits(due to Instrument/Platform Unavailability,Ground Segment Station Unavailability, Orbit Control Manouvre, and Unplanned Orbits)

 


Cycle 18 (31 Dec 1996 - 03 Feb 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
8874 8875 2
8879 8879 1
8882 8884 3
8887 8887 1
8931 8931 1
8948 8948 1
9012 9016 5
9156 9156 1
9178 9178 1
9181 9181 1
9202 9202 1
9218 9223 6
9227 9227 1
9231 9231 1
9246 9246 1
9263 9263 1
Total Missing Orbits (exp./unexpected) 28(6/22)
Total Missing Orbits Excluding known missing orbits (%) 4.44

 

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Cycle 19 (03 Feb 1997 - 10 Mar 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
9404 9405 2
9407 9408 2
9432 9432 1
9464 9464 1
9519 9538 20
9596 9596 1
9648 9648 1
9786 9786 1
9790 9790 1
9794 9795 2
9845 9845 1
9850 9850 1
Total Missing Orbits (exp./unexpected) 34 (24/10)
Total Missing Orbits Excluding known missing orbits (%) 2.10

 

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Cycle 20 (10 Mar 1997 - 14 Apr 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
9898 9900 3
9905 9906 1
9975 9975 1
10005 10005 1
10034 10035 2
10069 10069 1
10175 10175 1
10181 10182 2
10211 10212 2
10347 10349 3
Total Missing Orbits (exp./unexpected) 17(9/8)
Total Missing Orbits Excluding known missing orbits (%) 1.63

 

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Cycle 21 (14 Apr 1997 - 19 May 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
10392 10393 2
10404 10404 1
10420 10420 1
10476 10476 1
10521 10521 1
10578 10580 3
10584 10585 2
10593 10594 2
10607 10608 2
10621 10623 3
10633 10639 7
10650 10651 2
10657 10657 1
10664 10665 2
10678 10680 3
10693 10694 2
10707 10718 12
10721 10723 3
10736 10737 2
10750 10751 2
10764 10768 5
10769 10775 7
10779 10780 2
10793 10804 12
10807 10809 3
10822 10823 2
10836 10837 2
10848 10848 1
10850 10852 3
10862 10868 7
Total Missing Orbits (exp./unexpected) 98 (25/73)
Total Missing Orbits Excluding known missing orbits (%) 15.34

 

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Cycle 22 (19 May 1997 - 23 Jun 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
10877 10880 4
10882 10895 14
10897 10909 13
10911 10919 9
10922 10923 2
10936 10937 2
10950 10952 3
10965 10966 2
10979 10980 2
10993 10995 3
11008 11009 2
11022 11024 3
11036 11038 3
11051 11051 1
11064 11066 3
11079 11081 3
11088 11089 2
11094 11095 2
11109 11109 1
11116 11117 2
11151 11152 2
11164 11165 2
11223 11227 5
11273 11273 1
11337 11341 5
11350 11356 7
Total Missing Orbits (exp./unexpected) 98 (76/22)
Total Missing Orbits Excluding known missing orbits (%) 5.20

 

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Cycle 23 (23 Jun 1997 - 28 Jul 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
11650 11654 5
Total Missing Orbits (exp./unexpected) 5 (0/5)
Total Missing Orbits Excluding known missing orbits (%) 1.00

 

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Cycle 24 (28 Jul 1997 - 01 Sep 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
11980 11981 2
12038 12039 2
12327 12336 10
12370 12379 10
Total Missing Orbits (exp./unexpected) 24 (0/24)
Total Missing Orbits Excluding known missing orbits (%) 4.79

 

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Cycle 26 (06 Oct 1997 - 10 Nov 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
12900 12900 1
12978 12978 1
13083 13098 16
13153 13160 8
13254 13259 6
13265 13265 1
13291 13291 1
13329 13329 1
Total Missing Orbits (exp./unexpected) 35 (14/21)
Total Missing Orbits Excluding known missing orbits (%) 4.31

 

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Cycle 27 (10 Nov 1997 - 15 Dec 1997)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
13440 13444 5
13569 13570 2
13660 13660 1
Total Missing Orbits (exp./unexpected) 8 (5/3)
Total Missing Orbits Excluding known missing orbits (%) 0.60

 

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Cycle 28 (15 Dec 1997 - 19 Jan 1998)

 

Absolute Orbit Start Absolute Orbit Stop Number of Missing Orbits
13745 13753 9
13785 13785 1
13799 13799 1
13816 13816 1
Total Missing Orbits (exp./unexpected) 13 (0/13)
Total Missing Orbits Excluding known missing orbits (%) 2.40

 

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