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 | |
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 | |
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 | |
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 | |
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 | |
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 | |
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 | |
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 | |
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 | |
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 | |