AGASC ID 652224488

Info

Last Obs. 2024:103:16:04
magcatalog 6.03 ± 0.04
mag3 arcsec 6.01 ± 0.01
mag5 arcsec 6.01 ± 0.01
Nobs 14 (0 bad)
fok 100.0%
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
12904 2011:071:11:38:17.857 6 273.6 243.9 16653 16599 4 100.0% 100.0% 100.0% 100.0% 0.01 6.00 0.00 --
12906 2011:079:07:10:34.266 6 255.2 264.8 16732 16671 6 100.0% 100.0% 100.0% 100.0% 0.01 6.00 0.00 --
12912 2011:085:19:16:38.601 6 335.9 268.6 8279 8222 2 100.0% 100.0% 100.0% 100.0% 0.01 6.01 0.00 --
12909 2011:248:20:59:10.258 6 -365.5 -62.1 6645 6596 1 100.0% 100.0% 100.0% 100.0% 0.01 6.01 0.00 --
12910 2011:351:01:13:14.338 6 417.5 40.7 8278 8199 1 100.0% 100.0% 100.0% 100.0% 0.01 6.00 0.00 --
54981 2011:351:06:31:33.830 6 417.5 40.7 708 650 0 100.0% 100.0% 100.0% 100.0% 0.01 6.00 0.00 --
12907 2011:352:08:53:01.234 7 350.5 -34.2 6651 6567 7 100.0% 100.0% 100.0% 100.0% 0.01 6.01 0.00 --
12908 2011:352:13:08:17.295 7 350.5 -33.8 6650 6598 3 100.0% 100.0% 100.0% 100.0% 0.01 6.02 0.00 --
12911 2011:352:16:59:00.629 6 417.2 44.6 8278 8220 7 100.0% 100.0% 100.0% 100.0% 0.01 6.00 0.00 --
17150 2015:144:07:03:37.388 6 -376.7 182.2 17479 17428 4 100.0% 100.0% 100.0% 100.0% 0.01 6.01 0.00 --
17151 2015:147:14:36:21.192 6 -269.8 356.0 34284 34206 5 100.0% 100.0% 100.0% 100.0% 0.02 6.01 0.00 --
17671 2015:180:08:37:47.062 6 -376.7 182.2 17288 17232 4 100.0% 100.0% 100.0% 100.0% 0.01 6.01 0.00 --
51805 2015:180:18:56:34.185 5 -376.7 182.2 83 44 0 100.0% 100.0% 100.0% 100.0% 0.01 6.02 0.00 --
28276 2024:103:16:04:19.645 3 224.2 -173.4 952 887 0 100.0% 100.0% 100.0% 100.0% 0.01 6.04 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.