AGASC ID 966005056

Info

Last Obs. 2022:212:22:17
magcatalog 8.23 ± 0.10
mag3 arcsec 8.21 ± 0.01
mag5 arcsec 8.21 ± 0.01
Nobs 14 (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 mag100s ⟨ mag ⟩ σmag Comments
8975 2009:026:23:08:55.114 4 -365.9 -242.4 714 713 0 100.0% 100.0% 100.0% 100.0% 0.01 8.20 0.00 --
13436 2011:194:09:20:19.749 7 452.8 472.9 31085 31068 31 99.9% 100.0% 100.0% 99.9% 0.02 8.22 0.00 --
55299 2011:195:03:36:15.871 6 452.8 472.9 44 44 0 100.0% 100.0% 100.0% 100.0% 0.00 8.22 0.00 --
12382 2011:198:19:15:00.577 6 452.8 472.9 16460 16452 21 100.0% 100.0% 100.0% 99.9% 0.02 8.22 0.00 --
17318 2015:219:04:37:29.527 7 -296.4 401.3 4971 4970 2 100.0% 100.0% 100.0% 100.0% 0.03 8.19 0.00 --
17317 2015:219:13:53:05.738 7 -295.6 401.9 9818 9811 4 99.9% 100.0% 100.0% 99.9% 0.04 8.19 0.00 --
18909 2017:186:17:11:38.983 5 -198.4 -209.3 19751 19705 21 99.8% 100.0% 100.0% 99.8% 0.02 8.19 0.00 --
18908 2017:284:22:38:34.252 5 -84.0 -53.6 18352 18337 19 99.9% 100.0% 100.0% 99.9% 0.02 8.19 0.00 --
18910 2017:286:01:52:05.905 4 -453.4 -193.6 19586 19406 22 99.1% 100.0% 100.0% 99.1% 0.02 8.21 0.00 --
49071 2018:215:04:36:38.654 2 -273.0 239.6 269 268 0 99.6% 100.0% 100.0% 99.6% 0.02 8.21 0.00 --
21679 2019:158:22:55:26.277 4 -22.7 156.4 18367 18347 17 99.9% 100.0% 100.0% 99.9% 0.02 8.21 0.00 --
21680 2020:183:01:36:22.794 5 8.1 216.8 9844 9830 5 99.9% 100.0% 100.0% 99.9% 0.03 8.21 0.00 --
23294 2020:183:18:21:10.425 5 8.7 216.4 9844 9829 10 99.8% 100.0% 100.0% 99.8% 0.02 8.21 0.00 --
45361 2022:212:22:17:06.000 3 -202.7 -352.5 288 285 0 99.3% 100.0% 100.0% 99.3% 0.02 8.22 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.