AGASC ID 1201540760

Info

Last Obs. 2023:230:02:59
magcatalog 8.58 ± 0.03
mag3 arcsec 8.54 ± 0.02
mag5 arcsec 8.54 ± 0.02
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
3848 2003:058:06:10:08.898 4 315.8 454.8 16611 16541 13 100.0% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
4421 2003:059:05:09:43.431 5 315.8 454.8 17226 17139 15 99.9% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
3849 2003:342:22:23:10.221 6 212.3 -450.1 10381 10309 9 100.0% 100.0% 100.0% 100.0% 0.02 8.54 0.00 --
11074 2010:002:17:03:08.631 7 -69.5 -489.0 9083 8936 15 99.9% 100.0% 100.0% 99.9% 0.02 8.53 0.00 --
12068 2010:004:09:40:58.785 7 -69.5 -489.0 6487 6432 9 100.0% 100.0% 100.0% 100.0% 0.02 8.53 0.00 --
12072 2010:005:08:45:05.277 7 -69.5 -489.0 9565 9431 24 99.9% 100.0% 100.0% 99.9% 0.02 8.53 0.00 --
11986 2010:007:00:47:30.498 7 -69.5 -489.0 4048 3994 1 99.9% 99.9% 100.0% 99.9% 0.02 8.53 0.00 --
12069 2010:008:00:03:49.246 7 -69.5 -489.0 9461 9392 15 99.9% 100.0% 100.0% 99.9% 0.02 8.53 0.00 --
12071 2010:009:16:43:45.152 7 -69.5 -489.0 2097 2044 2 100.0% 100.0% 100.0% 100.0% 0.02 8.53 0.00 --
12070 2010:010:15:17:55.206 7 -69.5 -489.0 9193 9033 14 99.7% 100.0% 100.0% 99.7% 0.02 8.52 0.00 --
12090 2010:057:11:59:17.887 5 -439.4 -252.0 6516 6411 4 99.2% 100.0% 100.0% 99.2% 0.02 8.54 0.00 --
56429 2010:057:16:22:02.128 2 -439.4 -252.0 151 21 0 100.0% 100.0% 100.0% 100.0% 0.00 8.54 0.00 --
26557 2022:351:05:12:07.935 7 -423.6 -99.6 2522 2427 2 98.3% 100.0% 100.0% 98.2% 0.04 8.57 0.00 --
27081 2023:230:02:59:16.371 7 331.2 -261.3 6146 6070 3 100.0% 100.0% 100.0% 100.0% 0.06 8.57 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.