AGASC ID 551422208

Info

Last Obs. 2023:068:05:48
magcatalog 8.58 ± 0.13
mag3 arcsec 8.61 ± 0.02
mag5 arcsec 8.61 ± 0.02
Nobs 48 (0 bad)
fok 98.6%
f3 arcsec 100.0%
f5 arcsec 100.0%

Timeline

Observation Info

OBSID Time Slot Row Col N Nmag est ok Nout fmag est ok fdr3 fdbox5 fmag est ok 3 ⟨ δ mag ⟩ 100s ⟨ mag ⟩ σmag Comments
59550 2005:196:15:39:59.124 6 -179.8 -217.9 1756 1755 7 99.9% 100.0% 100.0% 99.9% 0.03 8.61 0.00 --
5646 2006:089:11:05:18.059 3 448.1 -88.4 1201 1198 2 99.8% 100.0% 100.0% 99.8% 0.02 8.62 0.00 --
20362 2018:207:00:31:35.103 7 -201.2 471.7 22513 22189 25 98.6% 100.0% 100.0% 98.5% 0.04 8.58 0.00 --
20361 2018:316:15:54:55.931 3 -446.1 -204.3 18402 18161 9 98.7% 100.0% 100.0% 98.7% 0.05 8.61 0.00 --
21875 2018:318:12:52:25.577 3 -446.3 -204.3 6379 6306 6 98.9% 100.0% 100.0% 98.9% 0.04 8.60 0.00 --
21959 2018:344:21:14:13.836 4 -208.6 -445.4 13528 13508 14 99.9% 100.0% 100.0% 99.8% 0.05 8.59 0.00 --
20360 2018:348:00:39:42.528 4 -208.4 -445.4 10778 10762 20 99.9% 100.0% 100.0% 99.9% 0.03 8.59 0.00 --
21650 2019:285:23:02:00.601 7 -488.8 40.0 23492 23233 9 98.9% 100.0% 100.0% 98.9% 0.07 8.62 0.00 --
21654 2020:140:09:09:48.355 3 390.9 282.2 18136 17721 23 97.7% 100.0% 100.0% 97.7% 0.04 8.60 0.00 --
23253 2020:143:01:26:32.592 3 391.1 282.0 6184 6026 5 97.4% 100.0% 100.0% 97.4% 0.03 8.60 0.00 --
21653 2020:221:00:53:35.354 7 -171.4 496.4 12264 12118 19 98.8% 100.0% 100.0% 98.8% 0.04 8.60 0.00 --
23338 2020:222:11:02:13.862 7 -172.2 496.8 9854 9641 11 97.8% 100.0% 100.0% 97.8% 0.02 8.60 0.00 --
21651 2020:238:06:42:57.286 4 -342.6 403.3 23506 23113 33 98.3% 100.0% 100.0% 98.3% 0.05 8.59 0.00 --
21651 2020:265:08:04:54.370 5 -460.9 253.7 9832 9683 13 98.5% 100.0% 100.0% 98.5% 0.04 8.61 0.00 --
24655 2020:265:19:45:32.327 5 -460.5 253.5 6903 6788 7 98.3% 100.0% 100.0% 98.3% 0.03 8.61 0.00 --
24656 2020:266:09:09:33.203 5 -461.1 253.7 7077 6966 9 98.4% 100.0% 100.0% 98.4% 0.04 8.61 0.00 --
23016 2021:009:17:41:36.361 3 -49.7 -490.2 12264 12171 13 99.2% 100.0% 100.0% 99.2% 0.04 8.58 0.00 --
23014 2021:023:05:16:14.429 3 99.2 -480.6 12995 12731 9 98.0% 100.0% 100.0% 98.0% 0.04 8.61 0.00 --
23015 2021:086:11:21:04.238 4 473.3 -140.6 24447 24150 36 98.8% 100.0% 100.0% 98.8% 0.04 8.61 0.00 --
23013 2021:090:20:12:17.302 3 484.7 -104.8 14114 14000 14 99.2% 100.0% 100.0% 99.2% 0.04 8.61 0.00 --
22518 2021:165:00:43:39.853 5 222.5 461.2 8142 8118 12 99.7% 100.0% 100.0% 99.7% 0.03 8.61 0.00 --
25062 2021:165:16:40:04.880 5 222.1 461.4 25940 25772 24 99.4% 100.0% 100.0% 99.3% 0.06 8.60 0.00 --
22519 2021:168:08:13:29.789 5 221.3 461.8 11296 11209 19 99.2% 100.0% 100.0% 99.2% 0.03 8.60 0.00 --
24933 2021:179:14:21:18.959 4 141.4 494.0 19583 19252 5 98.3% 100.0% 100.0% 98.3% 0.10 8.61 0.00 --
25082 2021:180:15:18:47.041 3 140.4 494.4 19711 19400 8 98.4% 100.0% 100.0% 98.4% 0.06 8.62 0.00 --
23874 2021:241:15:43:24.460 3 -341.6 388.4 14467 14231 14 98.4% 100.0% 100.0% 98.4% 0.08 8.61 0.00 --
24258 2021:243:05:07:52.857 4 -308.2 413.9 9335 9236 11 98.9% 100.0% 100.0% 98.9% 0.05 8.59 0.00 --
24259 2021:246:03:53:54.387 3 -357.7 375.2 18109 17785 24 98.2% 100.0% 100.0% 98.2% 0.07 8.61 0.00 --
23875 2021:322:01:57:28.417 3 -460.2 -208.6 14337 14105 14 98.4% 100.0% 100.0% 98.4% 0.08 8.64 0.00 --
24514 2021:323:09:07:14.613 3 -457.6 -209.8 14204 14010 14 98.6% 100.0% 100.0% 98.6% 0.07 8.62 0.00 --
24515 2021:348:11:03:02.442 5 -274.2 -414.7 13746 13569 6 98.7% 100.0% 100.0% 98.7% 0.06 8.61 0.00 --
23876 2022:058:16:54:29.022 5 331.6 -362.1 14714 14443 16 98.2% 100.0% 100.0% 98.2% 0.06 8.62 0.00 --
25974 2022:074:18:19:00.950 5 389.9 -297.4 10553 10418 8 98.7% 100.0% 100.0% 98.7% 0.03 8.62 0.00 --
25975 2022:075:19:10:41.734 4 416.3 -262.0 18868 18545 17 98.3% 100.0% 100.0% 98.3% 0.09 8.63 0.00 --
23877 2022:139:04:27:37.729 6 414.8 289.8 13741 13658 20 99.4% 100.0% 100.0% 99.4% 0.03 8.61 0.00 --
25976 2022:160:12:09:54.642 4 252.3 444.6 27900 27416 15 98.3% 100.0% 100.0% 98.3% 0.08 8.61 0.00 --
23878 2022:238:19:10:07.497 5 -320.7 405.1 14551 14132 14 97.1% 100.0% 100.0% 97.1% 0.06 8.62 0.00 --
25979 2022:255:15:03:17.276 4 -419.2 300.9 14700 14595 16 99.3% 100.0% 100.0% 99.3% 0.05 8.64 0.00 --
25978 2022:262:03:56:38.949 4 -450.1 254.0 10917 10762 8 98.6% 100.0% 100.0% 98.6% 0.04 8.64 0.00 --
27451 2022:268:19:55:18.812 4 -473.4 201.2 4609 4514 3 97.9% 100.0% 100.0% 97.9% 0.03 8.64 0.00 --
23879 2022:315:02:49:44.887 7 -491.2 -134.2 6867 6802 4 99.1% 100.0% 100.0% 99.1% 0.05 8.62 0.00 --
25981 2022:324:12:41:10.717 6 -459.4 -212.0 6875 6844 1 99.6% 100.0% 100.0% 99.6% 0.11 8.61 0.00 --
25980 2022:337:19:51:06.784 4 -357.8 -349.8 3941 3865 2 98.1% 100.0% 100.0% 98.1% 0.04 8.62 0.00 --
27576 2022:338:06:27:19.499 4 -357.8 -350.0 3703 3650 1 98.6% 100.0% 100.0% 98.6% 0.03 8.62 0.00 --
23880 2023:058:12:53:28.104 5 331.4 -362.5 4429 4319 6 97.5% 100.0% 100.0% 97.5% 0.06 8.64 0.00 --
27724 2023:058:21:59:44.166 5 331.4 -362.7 8170 7923 5 97.0% 100.0% 100.0% 97.0% 0.07 8.64 0.00 --
27725 2023:064:02:15:39.601 5 376.4 -315.7 4210 4182 4 99.3% 100.0% 100.0% 99.3% 0.05 8.64 0.00 --
27726 2023:068:05:48:48.207 5 397.0 -286.1 5056 4992 3 98.7% 100.0% 100.0% 98.7% 0.04 8.63 0.00 --

  • sample: One sample of ACA image telemetry. This could be a real image readout or it could be a null 4x4 image when the ACA is not tracking. Be aware that the sample period is faster for null 4x4 images (1.025 sec) than for typical 6x6 or 8x8 tracked images (2.05 or 4.1 sec respectively).
  • Kalman samples: Subset of samples when ACA could be tracking stars (AOPCADMD == NPNT & AOACASEQ == KALM)
  • dr3: Subset of tracked Kalman samples with radial centroid residual < 3 arcsec. This corresponds to "high quality" readouts. This effectively includes the track subset (AOACFCT == TRAK) because readouts with no TRAK are assigned an infinite centroid residual.
  • dbox5: Subset of tracked Kalman samples with centroid residual within a 5 arcsec box. This corresponds to spatial filter used by the OBC for inclusion in Kalman filter. This effectively includes the track subset (AOACFCT == TRAK) because readouts with no TRAK are assigned an infinite centroid residual.
  • track: Subset of Kalman samples where the image is being tracked (AOACFCT == TRAK)
  • sat_pix: Subset of Kalman samples with saturated pixel flag OK (AOACISP == OK)
  • ion_rad: Subset of Kalman samples with ionizing radiation flag OK (AOACIIR == OK)
  • mag_est_ok: Subset of Kalman samples that have a magnitude estimate (track & ion_rad)
  • n_total: Total number of sample regardless of OBC PCAD status
  • n: Synonym for n_total
  • n_kalman: Number of Kalman samples
  • n_dr3: Number of dr3 samples.
  • n_dbox5: Number of dbox5 samples.
  • n_track: Number of track samples.
  • n_ok_3: Number of (track & sat_pix & ion_rad & dr3) samples
  • n_ok_5: Number of (track & sat_pix & ion_rad & dbox5) samples
  • n_mag_est_ok: Number of (track & ion_rad) samples
  • n_mag_est_ok_3: Number of (track & ion_rad & dr3) samples
  • n_mag_est_ok_5: Number of (track & ion_rad & dbox5) samples
  • f_dr3: Fraction of mag-est-ok samples with centroid residual < 3 arcsec((mag_est_ok & n_dr3)/n_mag_est_ok)
  • f_dbox5: Fraction of mag-est-ok samples with centroid within 5 arcsec box((mag_est_ok & n_dbox5)/n_mag_est_ok)
  • f_mag_est_ok: n_mag_est_ok_3/n_kalman. This is a measure of the fraction of time during an observation that a magnitude estimate is available.
  • f_mag_est_ok_3: n_mag_est_ok_3/n_kalman.
  • f_mag_est_ok_5: n_mag_est_ok_5/n_kalman.
  • f_ok: n_ok_5 / n_kalman. Same as f_ok_5
  • f_ok_3: n_ok_3 / n_kalman. This is a measure of the fraction of time during an observation that the Kalman filter is getting high-quality star centroids.
  • f_ok_5: n_ok_5 / n_kalman. This is a measure of the fraction of time during an observation that the Kalman filter is getting any star centroid at all. This includes measurements out to 5 arcsec box halfwidth, so potentially 7 arcsec radial offset.