AGASC ID 1032456032

Info

Last Obs. 2022:178:13:57
magcatalog 8.41 ± 0.18
mag3 arcsec 8.36 ± 0.01
mag5 arcsec 8.36 ± 0.01
Nobs 14 (0 bad)
fok 99.5%
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
8234 2007:273:20:59:47.558 5 243.6 472.5 809 809 0 100.0% 100.0% 100.0% 100.0% 0.01 8.37 0.00 --
8237 2007:298:23:21:44.000 7 185.0 391.9 1106 1103 2 99.8% 100.0% 100.0% 99.8% 0.01 8.36 0.00 --
8230 2008:026:20:49:07.436 6 17.0 -364.7 675 675 2 100.0% 100.0% 100.0% 100.0% 0.01 8.38 0.00 --
9605 2008:173:13:31:01.811 7 -439.3 376.3 874 874 1 100.0% 100.0% 100.0% 100.0% 0.01 8.36 0.00 --
9015 2008:182:03:53:49.126 7 -433.5 356.7 556 556 0 100.0% 100.0% 100.0% 100.0% 0.02 8.37 0.00 --
11882 2010:176:13:52:48.678 7 -477.8 489.7 4781 4779 3 100.0% 100.0% 100.0% 100.0% 0.02 8.36 0.00 --
56167 2010:176:17:06:06.132 7 -477.8 489.7 47 47 0 100.0% 100.0% 100.0% 100.0% 0.00 8.36 0.00 --
13776 2012:176:04:12:44.121 4 -45.6 229.1 4270 4267 5 99.9% 100.0% 100.0% 99.9% 0.03 8.35 0.00 --
20309 2018:132:14:03:28.665 4 224.0 -186.6 27389 27307 32 99.7% 100.0% 100.0% 99.7% 0.03 8.36 0.00 --
20308 2018:136:07:57:25.596 4 222.0 -191.2 14443 14369 22 99.5% 100.0% 100.0% 99.5% 0.04 8.36 0.00 --
21093 2018:138:06:55:05.960 3 221.2 -190.8 16649 16596 21 99.7% 100.0% 100.0% 99.7% 0.03 8.37 0.00 --
21094 2018:139:06:30:13.659 3 221.6 -191.0 7461 7430 16 99.6% 100.0% 100.0% 99.6% 0.03 8.37 0.00 --
21095 2018:140:12:31:34.863 3 221.8 -191.0 13260 13206 15 99.6% 100.0% 100.0% 99.6% 0.03 8.37 0.00 --
45409 2022:178:13:57:34.982 7 -173.2 498.1 815 700 48 85.9% 95.9% 98.6% 82.3% 0.02 8.37 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.