Summary
In early 2004, obsid 4977 was identified as containing an apparent anomaly in the star acquisition sequence. This anomaly manifests itself by acquiring and tracking a star well outside of the commanded searchbox. Post facto processing discovered that the ACA tracked the wrong star for 8 seconds into KALMAN. This was followed by an intervention by the OBC that lead to the acquisition of the correct guide star. It is now clear that this incident is unique only in it's effect on processing.Details
Below are the detailed acquisition histories for 9 observations where the ACA tracked a star outside it's supposedly assigned search box. The star that is mistakenly tracked is always within another slots search area. This feature would appear to be the key to understanding this anomaly. In many cases the errant slot is recommanded to a fid or a different guide star. However, in several perigee observations, the star holds over into Kalman until the OBC recommands the search sequence. These cases are exact analogs to what we see in 4977, but were not recognized due to a lack of post facto processing.Obsid 2565
Expected (YANG,ZANG) for slot #2 is (-784, 1870)Observed (YANG,ZANG) is (-882, 15)
Observed slot #2 is within search box for slot #0
Slot #2 goes to normal position at fid commanding
Slot 2 ( Commanded -784, 1870) Slot 0 ( Commanded -989, -84) Slot 1 ( Commanded 421, -1000)
Time SEQ FCT Yang Zang Mag OBC FCT Yang Zang Mag OBC FCT Yang Zang Mag OBC
--------- ---- | ------- -------- ------- ------- ---- | ------- -------- -------- ------- ---- | ------- -------- -------- ------- ----
151646446 AQXN | SRCH -3276.80 -3276.80 13.94 ID | SRCH -3276.80 -3276.80 13.94 NOID | TRAK 504.73 -995.15 11.50 ID
151646447 AQXN | TRAK -881.62 15.55 11.38 ID | SRCH -3276.80 -3276.80 13.94 NOID | TRAK 508.15 -994.03 11.69 ID
151646448 AQXN | TRAK -881.62 15.55 11.38 ID | SRCH -3276.80 -3276.80 13.94 NOID | TRAK 508.15 -994.03 11.69 ID
151646449 AQXN | TRAK -882.12 15.55 11.31 ID | SRCH -3276.80 -3276.80 13.94 NOID | TRAK 506.78 -994.95 11.81 ID
151646450 AQXN | TRAK -882.12 15.55 11.31 ID | SRCH -3276.80 -3276.80 13.94 NOID | TRAK 506.78 -994.95 11.81 ID
151646451 AQXN | TRAK -882.05 15.43 11.31 ID | TRAK -991.83 -88.80 10.62 NOID | TRAK 506.12 -1001.05 12.00 ID
151646452 AQXN | TRAK -882.05 15.43 11.31 ID | TRAK -991.83 -88.80 10.62 NOID | TRAK 506.12 -1001.05 12.00 ID
151646453 AQXN | TRAK -882.05 15.50 11.38 ID | TRAK -991.90 -88.73 10.62 NOID | TRAK 504.93 -1004.50 11.75 ID
151646454 AQXN | TRAK -882.05 15.50 11.38 ID | TRAK -991.90 -88.73 10.62 NOID | TRAK 504.93 -1004.50 11.75 ID
151646455 AQXN | TRAK -882.00 15.23 11.38 ID | TRAK -992.05 -88.53 10.62 NOID | TRAK 504.38 -1003.80 11.81 ID
151646456 AQXN | TRAK -882.00 15.23 11.38 ID | TRAK -992.05 -88.53 10.62 NOID | TRAK 504.38 -1003.80 11.81 ID
151646458 AQXN | TRAK -882.12 15.48 11.31 ID | TRAK -992.15 -88.48 10.62 NOID | TRAK 504.25 -1003.98 11.88 ID
151646459 AQXN | TRAK -882.12 15.48 11.31 ID | TRAK -992.15 -88.48 10.62 NOID | TRAK 504.25 -1003.98 11.88 ID
151646460 GUID | TRAK -882.23 15.25 11.38 NOID | TRAK -992.25 -88.33 10.62 NOID | TRAK 503.78 -1004.33 11.88 NOID
151646461 GUID | TRAK -882.23 15.25 11.38 NOID | TRAK -992.25 -88.33 10.62 NOID | TRAK 503.78 -1004.33 11.88 NOID
151646462 GUID | TRAK -882.05 15.40 11.31 NOID | TRAK -992.35 -88.18 10.62 NOID | TRAK 504.12 -1003.73 11.81 NOID
151646463 GUID | TRAK -882.05 15.40 11.31 NOID | TRAK -992.35 -88.18 10.62 NOID | TRAK 504.12 -1003.73 11.81 NOID
151646464 GUID | TRAK -882.03 15.48 11.38 NOID | TRAK -992.35 -88.18 10.62 NOID | TRAK 504.43 -1003.95 11.81 NOID
151646465 GUID | TRAK -882.03 15.48 11.38 NOID | TRAK -992.35 -88.18 10.62 NOID | TRAK 504.43 -1003.95 11.81 NOID
151646466 GUID | TRAK -882.15 15.62 11.31 NOID | TRAK -992.40 -88.12 10.62 NOID | TRAK 503.75 -1003.80 11.69 NOID
151646467 GUID | TRAK -882.15 15.62 11.31 NOID | TRAK -992.40 -88.12 10.62 NOID | TRAK 503.75 -1003.80 11.69 NOID
151646468 GUID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID
151646469 GUID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID
151646470 GUID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID
151646471 GUID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID
151646472 GUID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID
151646473 GUID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID
151646474 GUID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID
151646475 GUID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID | SRCH -3276.80 -3276.80 13.94 NOID
151646476 GUID | TRAK -1812.15 166.68 7.19 NOID | TRAK -759.10 -1736.35 7.06 NOID | TRAK 2153.22 172.85 7.12 NOID
151646477 GUID | TRAK -1812.15 166.68 7.19 NOID | TRAK -759.10 -1736.35 7.06 NOID | TRAK 2153.22 172.85 7.12 NOID
151646478 GUID | TRAK -1812.15 166.68 7.19 NOID | TRAK -759.10 -1736.35 7.06 NOID | TRAK 2153.22 172.85 7.12 NOID
151646479 GUID | TRAK -1812.15 166.68 7.19 NOID | TRAK -759.10 -1736.35 7.06 NOID | TRAK 2153.22 172.85 7.12 NOID
151646480 KALM | TRAK -1812.15 166.65 7.19 NOID | TRAK -759.10 -1736.35 7.06 NOID | TRAK 2153.22 172.85 7.12 NOID
Obsid 2968
Expected (YANG,ZANG) for slot #0 is (1146, -1126)Observed (YANG,ZANG) is (313, 480)
Observed slot #0 is within the search box for slot #2
Slot #0 goes to normal position at fid commanding
Slot 0 (Commanded 1146, -1126)
Time FCT Yag Zag SEQ
--------- ---- -------- -------- -----
155669997 SRCH -3276.80 -3276.80 AQXN
155669998 SRCH -3276.80 -3276.80 AQXN
155669999 TRAK 313.03 480.10 AQXN
155670000 TRAK 313.03 480.10 AQXN
155670001 TRAK 313.08 479.80 AQXN
155670002 TRAK 313.08 479.80 AQXN
155670003 TRAK 313.75 479.85 AQXN
155670004 TRAK 313.75 479.85 AQXN
155670005 TRAK 313.78 479.88 AQXN
155670006 TRAK 313.78 479.88 AQXN
155670007 TRAK 313.62 479.90 AQXN
155670008 TRAK 313.62 479.90 AQXN
155670009 TRAK 313.38 480.05 AQXN
155670010 TRAK 313.38 480.05 AQXN
155670011 TRAK 313.43 479.68 AQXN
155670012 TRAK 313.43 479.68 AQXN
155670013 TRAK 313.50 479.85 AQXN
155670014 TRAK 313.50 479.85 AQXN
155670015 TRAK 313.75 479.75 AQXN
155670016 TRAK 313.75 479.75 AQXN
155670017 TRAK 313.48 479.62 AQXN
155670018 TRAK 313.48 479.62 AQXN
155670019 TRAK 313.30 479.65 GUID
155670020 TRAK 313.30 479.65 GUID
...
155670075 TRAK 319.38 484.55 GUID
155670076 TRAK 319.38 484.55 GUID
155670077 SRCH -3276.80 -3276.80 GUID
155670078 SRCH -3276.80 -3276.80 GUID
155670079 SRCH -3276.80 -3276.80 GUID
155670080 SRCH -3276.80 -3276.80 GUID
155670081 SRCH -3276.80 -3276.80 GUID
155670082 SRCH -3276.80 -3276.80 GUID
155670083 SRCH -3276.80 -3276.80 GUID
155670084 SRCH -3276.80 -3276.80 GUID
155670085 TRAK -760.25 -1736.98 GUID
155670086 TRAK -760.25 -1736.98 GUID
155670087 TRAK -760.28 -1736.95 GUID
155670088 TRAK -760.28 -1736.95 GUID
155670089 TRAK -760.28 -1736.98 KALM
155670090 TRAK -760.28 -1736.98 KALM
Obsid 2784
Expected (YANG,ZANG) for slot #2 is (-156, -223)Observed (YANG,ZANG) is (-1326, 748)
Observed slot #2 is within the search box for slot #7
Slot #2 goes to normal position at fid commanding
Slot 2 (Commanded -156, -223)
Time FCT Yag Zag SEQ
--------- ---- -------- -------- -----
143208621 SRCH -3276.80 -3276.80 AQXN
143208622 SRCH -3276.80 -3276.80 AQXN
143208623 TRAK -1326.83 748.83 AQXN
143208624 TRAK -1326.83 748.83 AQXN
143208625 TRAK -1326.68 748.93 AQXN
143208626 TRAK -1326.68 748.93 GUID
143208627 TRAK -1326.62 749.12 GUID
143208628 TRAK -1326.62 749.12 GUID
143208629 TRAK -1326.53 749.20 GUID
143208631 TRAK -1326.53 749.20 GUID
143208632 TRAK -1326.38 749.35 GUID
143208633 TRAK -1326.38 749.35 GUID
143208634 SRCH -3276.80 -3276.80 GUID
143208635 SRCH -3276.80 -3276.80 GUID
143208636 SRCH -3276.80 -3276.80 GUID
143208637 SRCH -3276.80 -3276.80 GUID
143208638 SRCH -3276.80 -3276.80 GUID
143208639 SRCH -3276.80 -3276.80 GUID
143208640 SRCH -3276.80 -3276.80 GUID
143208641 SRCH -3276.80 -3276.80 GUID
143208642 TRAK 399.18 1825.73 GUID
143208643 TRAK 399.18 1825.73 KALM
143208644 TRAK 399.23 1825.73 KALM
Obsid 3605
Expected (YANG,ZANG) for slot #1 is (-1733, -2258)Observed (YANG,ZANG) is (-1925, -1587)
Observed slot #1 is within the search box for slot #4
Slot #1 goes to normal position at fid commanding
Slot 1 (Commanded -1733, -2258)
Time FCT Yag Zag SEQ
--------- ---- -------- -------- -----
165136304 SRCH -3276.80 -3276.80 AQXN
165136305 TRAK -1925.68 -1588.03 AQXN
165136306 TRAK -1925.68 -1588.03 AQXN
165136307 TRAK -1925.55 -1587.83 AQXN
165136308 TRAK -1925.55 -1587.83 AQXN
165136309 TRAK -1925.75 -1587.90 AQXN
165136310 TRAK -1925.75 -1587.90 AQXN
165136311 TRAK -1925.58 -1588.30 AQXN
165136312 TRAK -1925.58 -1588.30 AQXN
165136313 TRAK -1925.73 -1588.18 GUID
165136314 TRAK -1925.73 -1588.18 GUID
165136315 TRAK -1925.90 -1588.03 GUID
165136316 TRAK -1925.90 -1588.03 GUID
165136317 TRAK -1925.85 -1587.95 GUID
165136318 TRAK -1925.85 -1587.95 GUID
165136319 TRAK -1925.68 -1588.30 GUID
165136320 TRAK -1925.68 -1588.30 GUID
165136321 SRCH -3276.80 -3276.80 GUID
165136322 SRCH -3276.80 -3276.80 GUID
165136323 SRCH -3276.80 -3276.80 GUID
165136324 SRCH -3276.80 -3276.80 GUID
165136325 SRCH -3276.80 -3276.80 GUID
165136326 SRCH -3276.80 -3276.80 GUID
165136327 SRCH -3276.80 -3276.80 GUID
165136328 SRCH -3276.80 -3276.80 GUID
165136329 TRAK -1816.23 1061.15 GUID
165136330 TRAK -1816.23 1061.15 GUID
165136331 TRAK -1816.23 1061.15 GUID
165136332 TRAK -1816.23 1061.15 GUID
165136333 TRAK -1816.23 1061.15 KALM
165136334 TRAK -1816.23 1061.15 KALM
Obsid 60960
Expected (YANG,ZANG) for slot #7 is (-1844, -1364)Observed (YANG,ZANG) is (-1788, -1733)
Observed slot #7 is within the search box for slot #1
Slot #7 is unused after acquisition, and continues to track the bad star
Slot 7 (Commanded -1844, -1364)
Time FCT Yag Zag SEQ
--------- ---- -------- -------- -----
153751381 SRCH -3276.80 -3276.80 AQXN
153751382 SRCH -3276.80 -3276.80 AQXN
153751383 TRAK -1785.23 -1733.05 AQXN
153751384 TRAK -1785.23 -1733.05 AQXN
153751385 TRAK -1785.10 -1733.10 AQXN
153751386 TRAK -1785.10 -1733.10 AQXN
153751387 TRAK -1785.58 -1732.85 AQXN
153751388 TRAK -1785.58 -1732.85 AQXN
153751389 TRAK -1785.20 -1733.03 AQXN
153751390 TRAK -1785.20 -1733.03 AQXN
153751391 TRAK -1785.28 -1733.12 GUID
153751392 TRAK -1785.28 -1733.12 GUID
153751393 TRAK -1785.18 -1732.93 GUID
153751395 TRAK -1785.18 -1732.93 GUID
153751396 TRAK -1785.10 -1732.90 GUID
153751397 TRAK -1785.10 -1732.90 GUID
153751398 TRAK -1785.10 -1732.95 GUID
153751399 TRAK -1785.10 -1732.95 GUID
153751400 TRAK -1785.25 -1732.90 GUID
153751401 TRAK -1785.25 -1732.90 GUID
153751402 TRAK -1784.90 -1732.98 GUID
153751403 TRAK -1784.90 -1732.98 GUID
153751404 TRAK -1785.12 -1732.95 GUID
153751405 TRAK -1785.12 -1732.95 GUID
153751406 TRAK -1785.43 -1732.95 GUID
153751407 TRAK -1785.43 -1732.95 GUID
153751408 TRAK -1785.10 -1732.88 GUID
153751409 TRAK -1785.10 -1732.88 GUID
153751410 TRAK -1785.28 -1733.03 GUID
153751411 TRAK -1785.28 -1733.03 GUID
153751412 TRAK -1785.12 -1733.12 KALM
153751413 TRAK -1785.12 -1733.12 KALM
Obsid 61232
Expected (YANG,ZANG) for slot #7 is (-1456, 1060)Observed (YANG,ZANG) is (-1907, -1317)
Observed slot #7 is within the search box for slot #5
Slot #7 recommands search sequence for guide star after beginning of Kalman.
Slot 7 (Commanded -1456, 1060)
Time FCT Yag Zag SEQ
--------- ---- -------- -------- -----
135239979 SRCH -3276.80 -3276.80 AQXN
135239980 SRCH -3276.80 -3276.80 AQXN
135239981 TRAK -1907.38 -1317.73 AQXN
135239982 TRAK -1907.38 -1317.73 AQXN
135239983 TRAK -1907.35 -1317.70 AQXN
135239984 TRAK -1907.35 -1317.70 AQXN
135239985 TRAK -1907.30 -1317.78 GUID
...
135240053 TRAK -1874.98 -1340.18 GUID
135240054 TRAK -1874.98 -1340.18 GUID
135240055 TRAK -1874.38 -1340.58 KALM
135240056 TRAK -1874.38 -1340.58 KALM
135240057 TRAK -1873.70 -1341.33 KALM
135240058 TRAK -1873.70 -1341.33 KALM
135240059 TRAK -1873.15 -1341.78 KALM
135240060 TRAK -1873.15 -1341.78 KALM
135240061 TRAK -1872.33 -1342.12 KALM
135240062 TRAK -1872.33 -1342.12 KALM
135240063 SRCH -3276.80 -3276.80 KALM
135240064 SRCH -3276.80 -3276.80 KALM
135240065 SRCH -3276.80 -3276.80 KALM
135240066 SRCH -3276.80 -3276.80 KALM
135240067 SRCH -3276.80 -3276.80 KALM
135240068 SRCH -3276.80 -3276.80 KALM
135240069 SRCH -3276.80 -3276.80 KALM
135240070 SRCH -3276.80 -3276.80 KALM
135240071 TRAK -1457.30 -1050.45 KALM
135240072 TRAK -1457.30 -1050.45 KALM
Obsid 61243
Expected (YANG,ZANG) for slot #4 is (-1248, -1092)Observed (YANG,ZANG) is (-1657, 1241)
Observed slot #4 is within the search box for slot #3
Slot #4 recommands search sequence for guide star after beginning of Kalman.
Slot 4 (Commanded -1248, -1092)
Time FCT Yag Zag SEQ
--------- ---- -------- -------- -----
134339612 SRCH -3276.80 -3276.80 AQXN
134339613 SRCH -3276.80 -3276.80 AQXN
134339614 SRCH -3276.80 -3276.80 AQXN
134339615 TRAK -1657.33 1241.03 AQXN
134339616 TRAK -1657.33 1241.03 AQXN
134339617 TRAK -1657.25 1240.90 AQXN
134339618 TRAK -1657.25 1240.90 AQXN
134339619 TRAK -1657.25 1240.73 AQXN
134339620 TRAK -1657.25 1240.73 AQXN
134339621 TRAK -1657.12 1240.65 GUID
134339622 TRAK -1657.12 1240.65 GUID
134339623 TRAK -1657.00 1240.53 GUID
134339624 TRAK -1657.00 1240.53 GUID
134339625 TRAK -1656.93 1240.40 GUID
134339626 TRAK -1656.93 1240.40 GUID
134339627 TRAK -1656.95 1240.28 GUID
134339628 TRAK -1656.95 1240.28 GUID
134339629 TRAK -1656.93 1240.30 GUID
134339630 TRAK -1656.93 1240.30 GUID
134339631 TRAK -1657.00 1240.35 GUID
134339632 TRAK -1657.00 1240.35 GUID
134339633 TRAK -1657.10 1240.62 GUID
134339634 TRAK -1657.10 1240.62 GUID
134339635 TRAK -1657.20 1240.88 GUID
134339636 TRAK -1657.20 1240.88 GUID
134339637 TRAK -1657.38 1241.18 KALM
134339638 TRAK -1657.38 1241.18 KALM
134339639 TRAK -1657.53 1241.50 KALM
134339640 TRAK -1657.53 1241.50 KALM
134339641 TRAK -1657.65 1241.78 KALM
134339642 TRAK -1657.65 1241.78 KALM
134339643 TRAK -1657.80 1242.15 KALM
134339644 TRAK -1657.80 1242.15 KALM
134339645 SRCH -3276.80 -3276.80 KALM
134339646 SRCH -3276.80 -3276.80 KALM
134339648 SRCH -3276.80 -3276.80 KALM
134339649 SRCH -3276.80 -3276.80 KALM
134339650 SRCH -3276.80 -3276.80 KALM
134339651 SRCH -3276.80 -3276.80 KALM
134339652 SRCH -3276.80 -3276.80 KALM
134339653 SRCH -3276.80 -3276.80 KALM
134339654 TRAK -1237.60 -1098.80 KALM
134339655 TRAK -1237.60 -1098.80 KALM
Obsid 61695
Expected (YANG,ZANG) for slot #5 is (-583,-2150)Observed (YANG,ZANG) is (-661,-1350)
Observed slot #5 is within the search box for slot #1
Slot #5 recommands search sequence for guide star after beginning of Kalman.
Slot 5 (Commanded -583, -2150)
Time FCT Yag Zag SEQ
--------- ---- -------- -------- -----
101427055 SRCH -3276.80 -3276.80 AQXN
101427056 TRAK -662.62 -1350.23 AQXN
101427057 TRAK -662.62 -1350.23 AQXN
101427058 TRAK -662.50 -1350.03 AQXN
101427059 TRAK -662.50 -1350.03 AQXN
101427060 TRAK -662.18 -1349.88 AQXN
101427061 TRAK -662.18 -1349.88 AQXN
101427062 TRAK -662.08 -1349.62 AQXN
101427063 TRAK -662.08 -1349.62 AQXN
101427064 TRAK -661.93 -1349.45 AQXN
101427065 TRAK -661.93 -1349.45 AQXN
101427066 TRAK -661.83 -1349.23 GUID
...
101427085 TRAK -660.08 -1347.05 GUID
101427086 TRAK -660.08 -1347.05 GUID
101427087 TRAK -659.85 -1346.78 KALM
101427088 TRAK -659.85 -1346.78 KALM
101427089 TRAK -659.62 -1346.38 KALM
101427090 TRAK -659.62 -1346.38 KALM
101427091 TRAK -659.38 -1346.10 KALM
101427092 TRAK -659.38 -1346.10 KALM
101427093 TRAK -659.12 -1345.85 KALM
101427094 TRAK -659.12 -1345.85 KALM
101427095 SRCH -3276.80 -3276.80 KALM
101427096 SRCH -3276.80 -3276.80 KALM
101427097 SRCH -3276.80 -3276.80 KALM
101427098 SRCH -3276.80 -3276.80 KALM
101427099 SRCH -3276.80 -3276.80 KALM
101427100 SRCH -3276.80 -3276.80 KALM
101427101 SRCH -3276.80 -3276.80 KALM
101427102 SRCH -3276.80 -3276.80 KALM
101427103 TRAK -568.50 -2161.30 KALM
101427104 TRAK -568.50 -2161.30 KALM
Obsid 61980
Expected (YANG,ZANG) for slot #3 is (-804,-1129)Observed (YANG,ZANG) is (-1370,-687)
Observed slot #3 is within the search box for slot #0
Slot #3 recommands search sequence for guide star after beginning of Kalman.
Slot 3 (Commanded -804, -1129)
Time FCT Yag Zag SEQ
--------- ---- -------- -------- -----
81365900 SRCH -3276.80 -3276.80 AQXN
81365901 SRCH -3276.80 -3276.80 AQXN
81365902 TRAK -1369.80 -687.00 AQXN
81365903 TRAK -1369.80 -687.00 AQXN
81365904 TRAK -1369.95 -687.08 AQXN
81365905 TRAK -1369.95 -687.08 AQXN
81365906 TRAK -1369.98 -687.10 AQXN
81365907 TRAK -1369.98 -687.10 AQXN
81365908 TRAK -1370.08 -687.12 AQXN
81365909 TRAK -1370.08 -687.12 GUID
81365910 TRAK -1370.12 -687.10 GUID
81365911 TRAK -1370.12 -687.10 GUID
81365912 TRAK -1370.25 -687.12 GUID
81365913 TRAK -1370.25 -687.12 GUID
81365914 TRAK -1370.30 -687.15 GUID
81365915 TRAK -1370.30 -687.15 GUID
81365916 TRAK -1370.40 -687.15 GUID
81365917 TRAK -1370.40 -687.15 KALM
81365918 TRAK -1370.43 -687.15 KALM
81365919 TRAK -1370.43 -687.15 KALM
81365920 TRAK -1370.48 -687.30 KALM
81365921 TRAK -1370.48 -687.30 KALM
81365922 TRAK -1370.45 -687.25 KALM
81365923 TRAK -1370.45 -687.25 KALM
81365924 SRCH -3276.80 -3276.80 KALM
81365925 SRCH -3276.80 -3276.80 KALM
81365927 SRCH -3276.80 -3276.80 KALM
81365928 SRCH -3276.80 -3276.80 KALM
81365929 SRCH -3276.80 -3276.80 KALM
81365930 SRCH -3276.80 -3276.80 KALM
81365931 SRCH -3276.80 -3276.80 KALM
81365932 SRCH -3276.80 -3276.80 KALM
81365933 TRAK -812.75 -1122.33 KALM
81365934 TRAK -812.75 -1122.33 KALM
Conclusion
The root cause of this anomaly is still unknown. Analysis of these data are continuing here at SAO as well as at Ball to understand this problem. We have studied this anomaly thoroughly and conclude, even though it is a recurring phenomena, that it poses minimal threat to continued normal spacecraft operation.
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Last modified:12/27/13