AGASC ID 1100496056

Info

Last Obs. 2023:115:01:42
magcatalog 8.83 ± 0.08
mag3 arcsec 8.88 ± 0.01
mag5 arcsec 8.88 ± 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
56986 2009:187:20:37:15.977 1 -334.1 53.1 954 953 0 100.0% 99.9% 100.0% 99.9% 0.02 8.85 0.00 --
11753 2009:231:09:47:15.700 6 183.2 -438.5 35893 35847 59 99.9% 100.0% 100.0% 99.9% 0.02 8.88 0.00 --
56882 2009:232:06:44:12.678 4 183.2 -438.5 29 29 0 100.0% 100.0% 100.0% 100.0% 0.00 8.88 0.00 --
12296 2010:215:18:33:23.331 4 349.1 -67.3 24454 24435 32 99.9% 100.0% 100.0% 99.9% 0.03 8.89 0.00 --
56093 2010:216:08:56:13.794 2 349.1 -67.3 45 45 0 100.0% 100.0% 100.0% 100.0% 0.01 8.90 0.00 --
13019 2010:217:22:48:52.221 4 349.1 -67.3 44660 44612 82 99.9% 100.0% 100.0% 99.9% 0.03 8.89 0.00 --
56089 2010:219:00:41:54.646 2 349.1 -67.3 46 46 0 100.0% 100.0% 100.0% 100.0% 0.01 8.89 0.00 --
13022 2010:223:14:02:11.010 5 334.2 -118.7 29395 29367 45 99.9% 100.0% 100.0% 99.9% 0.02 8.89 0.00 --
56081 2010:224:07:18:38.555 2 334.2 -118.7 43 43 0 100.0% 100.0% 100.0% 100.0% 0.01 8.88 0.00 --
12295 2010:225:12:44:04.233 5 334.2 -118.7 47422 47369 82 99.9% 100.0% 100.0% 99.9% 0.02 8.88 0.00 --
52616 2014:202:08:04:56.825 3 -313.2 -80.1 3300 3281 2 99.4% 100.0% 100.0% 99.4% 0.02 8.87 0.00 --
52608 2014:205:01:15:04.340 3 -319.8 -50.2 2291 2291 4 100.0% 99.8% 100.0% 99.8% 0.03 8.86 0.00 --
44599 2023:115:00:29:34.521 6 -268.4 -68.7 266 249 16 93.6% 96.8% 100.0% 90.6% 0.04 8.87 0.00 --
44597 2023:115:01:42:26.900 6 -268.4 -68.5 1937 1376 77 89.9% 96.9% 99.3% 87.1% 0.05 8.88 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.