AGASC ID 732434512

Info

Last Obs. 2024:137:12:46
magcatalog 7.05 ± 0.10
mag3 arcsec 7.04 ± 0.01
mag5 arcsec 7.04 ± 0.01
Nobs 13 (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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
47228 2020:126:23:27:31.188 5 314.4 14.8 2142 1666 3 100.0% 99.9% 100.0% 99.9% 0.01 7.03 0.00 --
47225 2020:129:07:18:29.222 4 293.6 116.7 2242 2177 1 100.0% 100.0% 100.0% 100.0% 0.02 7.02 0.00 --
47223 2020:129:13:28:05.094 5 289.0 127.9 3068 2590 2 100.0% 100.0% 100.0% 100.0% 0.02 7.02 0.00 --
47221 2020:131:21:46:06.246 5 230.2 216.9 3102 3047 2 99.9% 99.9% 100.0% 99.8% 0.01 7.03 0.00 --
46077 2021:258:03:26:30.594 4 102.3 348.9 832 762 1 100.0% 100.0% 100.0% 100.0% 0.01 7.03 0.00 --
25692 2022:002:17:01:41.450 6 -44.9 -52.2 7462 7378 6 100.0% 100.0% 100.0% 100.0% 0.02 7.04 0.00 --
26253 2022:003:04:59:09.314 6 -45.8 -51.7 7466 7391 4 100.0% 100.0% 100.0% 100.0% 0.02 7.04 0.00 --
25222 2023:128:20:12:39.130 4 63.5 -5.1 4566 4501 2 99.9% 100.0% 100.0% 99.9% 0.02 7.05 0.00 --
27830 2023:129:17:27:42.097 4 63.7 -1.1 4489 4427 1 100.0% 100.0% 100.0% 100.0% 0.04 7.07 0.00 --
27831 2023:132:10:05:07.243 4 65.3 15.6 2705 2643 1 100.0% 100.0% 100.0% 100.0% 0.01 7.03 0.00 --
44517 2023:139:05:30:07.281 1 -365.8 441.0 746 692 0 100.0% 99.9% 100.0% 99.9% 0.01 7.03 0.00 --
29387 2024:118:23:56:44.934 4 434.0 280.7 2542 2468 3 100.0% 100.0% 100.0% 100.0% 0.01 7.04 0.00 --
29406 2024:137:12:46:24.370 4 -322.2 356.5 2523 2470 1 100.0% 100.0% 100.0% 100.0% 0.02 7.05 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.