AGASC ID 1090922592

Info

Last Obs. 2024:147:12:18
magcatalog 8.68 ± 0.05
mag3 arcsec 8.66 ± 0.02
mag5 arcsec 8.66 ± 0.02
Nobs 29 (0 bad)
fok 99.3%
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
2759 2002:062:04:33:22.000 4 -102.9 439.1 23911 23818 13 100.0% 100.0% 100.0% 100.0% 0.02 8.66 0.00 --
3517 2003:264:13:00:05.609 5 114.2 -415.8 2688 2635 2 99.9% 100.0% 100.0% 99.9% 0.02 8.66 0.00 --
4596 2004:027:16:53:18.402 5 -155.9 383.7 2586 2520 1 100.0% 100.0% 100.0% 100.0% 0.01 8.66 0.00 --
4599 2004:293:12:38:27.061 4 -18.6 -407.4 2589 2498 5 99.3% 100.0% 100.0% 99.3% 0.03 8.65 0.00 --
11823 2010:152:05:00:06.000 4 410.9 119.6 31003 30901 45 99.9% 100.0% 100.0% 99.9% 0.02 8.66 0.00 --
56227 2010:152:23:18:37.873 3 410.9 119.6 111 61 0 100.0% 100.0% 100.0% 100.0% 0.00 8.66 0.00 --
56218 2010:154:02:30:39.895 3 244.7 107.5 100 48 0 100.0% 100.0% 100.0% 100.0% 0.01 8.67 0.00 --
12415 2011:284:04:59:14.980 5 -438.4 -144.7 2581 2527 2 99.9% 100.0% 100.0% 99.9% 0.02 8.65 0.00 --
52740 2014:151:18:31:51.221 3 325.4 114.2 1139 1062 0 98.3% 100.0% 100.0% 98.3% 0.03 8.66 0.00 --
17460 2015:013:14:11:52.011 6 -321.0 309.6 12343 12210 13 99.7% 100.0% 100.0% 99.7% 0.03 8.65 0.00 --
16956 2015:169:13:57:04.167 5 235.4 -123.0 12341 12269 13 99.9% 100.0% 100.0% 99.8% 0.02 8.68 0.00 --
17676 2015:170:19:20:17.624 5 235.4 -123.0 17053 16982 14 99.9% 100.0% 100.0% 99.9% 0.02 8.68 0.00 --
18459 2016:144:07:22:45.312 6 391.4 198.5 13242 13077 13 99.9% 100.0% 100.0% 99.9% 0.02 8.66 0.00 --
18854 2016:151:02:06:23.638 6 391.4 198.5 6489 6391 10 99.6% 100.0% 100.0% 99.6% 0.02 8.65 0.00 --
18878 2016:177:09:12:08.024 7 376.3 -180.4 21614 21474 30 99.6% 100.0% 100.0% 99.6% 0.03 8.68 0.00 --
19724 2017:152:05:20:38.289 4 421.6 69.1 23473 23151 29 98.9% 100.0% 100.0% 98.9% 0.04 8.65 0.00 --
19725 2018:011:11:28:36.289 7 -310.3 322.5 23567 23414 32 99.7% 100.0% 100.0% 99.7% 0.03 8.65 0.00 --
20744 2018:159:18:48:10.113 4 425.5 22.1 24936 24420 21 98.2% 100.0% 100.0% 98.2% 0.04 8.64 0.00 --
20746 2019:014:16:56:55.950 6 -296.4 336.5 23605 23376 41 99.3% 100.0% 100.0% 99.3% 0.03 8.65 0.00 --
20747 2019:159:10:02:30.064 7 421.4 32.5 24538 24357 34 99.5% 100.0% 100.0% 99.5% 0.04 8.66 0.00 --
21692 2019:162:21:42:02.522 7 422.6 -17.8 26004 25735 28 99.3% 100.0% 100.0% 99.3% 0.04 8.68 0.00 --
46855 2020:296:07:17:58.270 6 283.2 92.5 2540 2462 2 99.5% 100.0% 100.0% 99.5% 0.03 8.65 0.00 --
46848 2020:298:23:00:09.203 6 286.5 81.3 2463 2360 2 98.5% 100.0% 100.0% 98.5% 0.03 8.65 0.00 --
24712 2021:145:17:48:53.836 6 373.0 215.7 15271 14832 22 97.5% 100.0% 100.0% 97.5% 0.03 8.66 0.00 --
26017 2022:133:03:18:44.728 6 315.7 299.0 14016 13673 13 98.0% 100.0% 100.0% 98.0% 0.04 8.68 0.00 --
27359 2023:106:13:03:15.581 7 60.5 438.7 7471 7260 6 97.8% 100.0% 100.0% 97.8% 0.07 8.65 0.00 --
27360 2023:211:07:39:46.180 7 219.5 -354.0 7423 7347 2 100.0% 100.0% 100.0% 100.0% 0.06 8.70 0.00 --
26621 2024:147:01:00:36.071 5 403.1 158.4 4737 4666 1 100.0% 100.0% 100.0% 99.9% 0.07 8.68 0.00 --
29416 2024:147:12:18:20.727 6 384.0 204.3 4004 3933 2 100.0% 100.0% 100.0% 100.0% 0.08 8.68 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.