AGASC ID 1201409432

Info

Last Obs. 2023:162:23:26
magcatalog 9.02 ± 0.06
mag3 arcsec 9.03 ± 0.01
mag5 arcsec 9.03 ± 0.01
Nobs 12 (0 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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
3503 2003:358:06:50:49.016 5 -275.0 -219.0 23579 23240 23 98.6% 100.0% 100.0% 98.6% 0.05 9.02 0.00 --
5440 2005:110:18:51:32.836 7 -84.7 363.9 12057 12041 17 99.9% 100.0% 100.0% 99.9% 0.03 9.02 0.00 --
5441 2005:117:22:28:08.655 6 -42.3 370.6 12287 12281 10 100.0% 100.0% 100.0% 99.9% 0.03 9.02 0.00 --
5443 2005:133:19:33:42.636 6 52.6 367.2 11050 11027 6 99.8% 100.0% 100.0% 99.8% 0.03 9.04 0.00 --
5444 2005:139:01:57:11.277 5 83.1 360.5 12275 12265 9 99.9% 100.0% 100.0% 99.9% 0.02 9.04 0.00 --
59604 2005:172:00:48:50.704 2 -128.9 216.9 47 47 0 100.0% 100.0% 100.0% 100.0% 0.01 9.03 0.00 --
14030 2012:335:17:05:25.582 6 347.9 -343.0 15065 15035 19 99.8% 100.0% 100.0% 99.8% 0.04 9.04 0.00 --
23270 2020:150:22:56:26.503 6 -470.2 487.6 13744 13671 12 99.5% 100.0% 100.0% 99.5% 0.05 9.03 0.00 --
21882 2020:151:14:49:43.723 6 -469.9 487.4 17128 16920 1523 98.8% 99.9% 100.0% 98.7% 0.04 9.03 0.00 --
21883 2020:152:08:47:20.067 6 -469.7 487.4 16152 16018 24 99.2% 100.0% 100.0% 99.2% 0.05 9.03 0.00 --
46061 2021:264:08:42:10.339 6 172.0 -148.7 264 257 0 97.3% 100.0% 100.0% 97.3% 0.03 9.07 0.00 --
25206 2023:162:23:26:08.755 7 -461.0 495.7 3156 3155 2 100.0% 99.9% 100.0% 99.9% 0.05 9.04 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.