AGASC ID 332137488

Info

Last Obs. 2023:231:11:50
magcatalog 8.42 ± 0.05
mag3 arcsec 8.50 ± 0.02
mag5 arcsec 8.50 ± 0.02
Nobs 17 (1 bad)
fok 99.4%
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
11572 2010:067:09:34:52.161 3 -182.3 -400.9 19706 19577 30 99.6% 100.0% 100.0% 99.6% 0.02 8.48 0.00 --
51760 2015:191:15:49:26.731 7 -214.3 475.1 2539 2478 14 99.8% 99.8% 100.0% 99.6% 0.02 8.47 0.00 --
65526 2022:051:00:46:18.918 4 -237.9 271.4 13169 12986 11 99.1% 100.0% 100.0% 99.1% 0.05 8.52 0.00 --
25695 2022:221:05:19:22.625 4 142.5 -299.3 6488 6327 6 98.6% 100.0% 100.0% 98.6% 0.05 8.52 0.00 --
27251 2022:223:00:21:48.660 5 151.8 -294.8 7123 6987 2 99.3% 100.0% 100.0% 99.3% 0.05 8.52 0.00 --
25696 2023:063:22:17:58.218 6 -302.2 195.0 3010 2906 0 98.3% 100.0% 100.0% 98.3% 0.04 8.48 0.00 --
25700 2023:132:13:36:19.247 6 -185.4 -285.0 7170 6931 4 97.4% 100.0% 100.0% 97.4% 0.05 8.49 0.00 --
44436 2023:161:04:10:33.640 3 -82.0 -269.5 327 275 0 99.6% 100.0% 100.0% 99.6% 0.02 8.49 0.00 --
25698 2023:167:07:21:31.132 5 -84.9 -324.4 9862 9816 3 100.0% 100.0% 100.0% 99.9% 0.09 8.49 0.00 --
25699 2023:169:02:15:11.562 5 -76.2 -326.8 3748 3703 2 100.0% 100.0% 100.0% 100.0% 0.04 8.48 0.00 --
25255 2023:200:07:27:04.111 5 41.9 -327.9 3758 3692 0 99.9% 100.0% 100.0% 99.9% 0.06 8.54 0.00 --
27958 2023:200:15:39:17.708 5 42.7 -327.3 3510 3446 2 99.9% 100.0% 100.0% 99.9% 0.05 8.53 0.00 --
25697 2023:218:14:54:11.783 5 99.4 -316.3 2536 2468 0 100.0% 100.0% 100.0% 99.9% 0.04 8.52 0.00 --
25694 2023:218:22:03:57.324 5 109.4 -311.7 3509 3450 2 100.0% 100.0% 100.0% 100.0% 0.04 8.53 0.00 --
27252 2023:224:03:21:35.375 6 154.3 -292.4 2662 2605 2 100.0% 100.0% 100.0% 100.0% 0.03 8.50 0.00 --
28372 2023:224:18:39:20.074 6 156.2 -289.8 3027 2960 1 100.0% 100.0% 100.0% 100.0% 0.04 8.50 0.00 --
44241 2023:231:11:50:48.805 3 332.6 -266.6 0 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Error: No level 0 data.

  • 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.