AGASC ID 895485920

Info

Last Obs. 2022:172:20:22
magcatalog 8.63 ± 0.08
mag3 arcsec 8.64 ± 0.01
mag5 arcsec 8.64 ± 0.01
Nobs 27 (0 bad)
fok 99.8%
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
9988 2009:038:17:15:08.973 3 -445.9 -391.7 1067 1065 1 99.8% 99.9% 99.9% 99.7% 0.01 8.65 0.00 --
9989 2009:038:17:56:58.973 3 -301.1 -300.8 1063 1060 4 99.7% 100.0% 100.0% 99.7% 0.01 8.63 0.00 --
10013 2009:038:18:38:48.973 5 -298.2 -469.6 1064 1063 0 99.9% 100.0% 100.0% 99.9% 0.01 8.63 0.00 --
10059 2009:196:17:10:08.313 4 -301.6 -52.6 18146 18118 33 99.9% 100.0% 100.0% 99.8% 0.01 8.64 0.00 --
13161 2010:297:10:23:42.206 5 -305.4 -34.1 14820 14807 25 99.9% 100.0% 100.0% 99.9% 0.02 8.64 0.00 --
11051 2010:297:19:27:15.895 5 -305.8 -33.1 5631 5624 7 99.9% 100.0% 100.0% 99.9% 0.02 8.64 0.00 --
13225 2011:048:08:43:55.022 4 287.9 67.6 14712 14580 20 99.1% 100.0% 100.0% 99.1% 0.02 8.64 0.00 --
13252 2011:119:16:46:44.405 5 289.7 57.2 19593 19549 18 99.8% 100.0% 100.0% 99.8% 0.03 8.64 0.00 --
14339 2011:251:03:21:14.090 5 -306.2 -40.1 16978 16958 29 99.9% 100.0% 100.0% 99.9% 0.01 8.63 0.00 --
12454 2011:307:05:01:02.826 5 -308.0 -31.3 5444 5442 6 100.0% 100.0% 100.0% 100.0% 0.02 8.63 0.00 --
13590 2012:034:06:46:44.434 3 -451.9 -58.4 1419 1419 0 100.0% 100.0% 100.0% 100.0% 0.01 8.64 0.00 --
13706 2012:134:17:35:23.612 5 288.6 54.0 23097 23074 35 99.9% 100.0% 100.0% 99.9% 0.02 8.62 0.00 --
14475 2012:261:15:56:38.105 5 -308.4 -39.3 15686 15678 15 99.9% 100.0% 100.0% 99.9% 0.02 8.64 0.00 --
14476 2012:302:03:05:49.545 5 -309.4 -33.7 14727 14718 16 99.9% 100.0% 100.0% 99.9% 0.02 8.64 0.00 --
14477 2013:036:04:01:29.937 7 287.7 71.4 14697 14603 11 99.4% 100.0% 100.0% 99.4% 0.02 8.63 0.00 --
53924 2013:053:22:33:16.174 2 286.7 65.8 45 45 0 100.0% 100.0% 100.0% 100.0% 0.01 8.64 0.00 --
14479 2014:196:05:14:41.734 5 -305.4 -54.2 14728 14703 26 99.8% 100.0% 100.0% 99.8% 0.02 8.65 0.00 --
16638 2014:198:11:42:07.164 5 -299.2 -70.1 35504 35485 37 99.9% 100.0% 100.0% 99.9% 0.02 8.65 0.00 --
52632 2014:199:08:09:05.289 3 -299.2 -70.1 192 192 0 100.0% 100.0% 100.0% 100.0% 0.01 8.65 0.00 --
15750 2014:201:16:25:39.583 4 -299.2 -70.1 11415 11392 9 99.8% 100.0% 100.0% 99.8% 0.02 8.65 0.00 --
52621 2014:201:23:28:42.393 3 -299.2 -70.1 217 215 0 99.1% 100.0% 100.0% 99.1% 0.02 8.65 0.00 --
17779 2016:195:18:35:06.589 5 -309.8 -23.7 34130 34045 46 99.8% 100.0% 100.0% 99.7% 0.03 8.65 0.00 --
50855 2016:196:14:15:33.949 3 -309.8 -23.7 31 31 0 100.0% 100.0% 100.0% 100.0% 0.01 8.65 0.00 --
18881 2016:197:11:44:18.799 5 -309.8 -23.7 32100 32026 33 99.8% 100.0% 100.0% 99.8% 0.02 8.65 0.00 --
23994 2021:255:21:47:27.232 4 407.3 410.8 2642 2591 3 98.1% 100.0% 100.0% 98.1% 0.02 8.64 0.00 --
23993 2021:258:08:42:56.659 4 324.6 299.4 2646 2629 3 99.4% 100.0% 100.0% 99.4% 0.04 8.63 0.00 --
24038 2022:172:20:22:55.128 4 330.1 444.1 2666 2601 2 97.6% 100.0% 100.0% 97.6% 0.03 8.66 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.