AGASC ID 1042556616

Info

Last Obs. 2022:210:14:09
magcatalog 9.10 ± 0.11
mag3 arcsec 9.10 ± 0.02
mag5 arcsec 9.10 ± 0.02
Nobs 11 (0 bad)
fok 98.2%
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
56092 2010:216:09:07:42.711 2 -335.4 359.4 543 538 1 99.3% 100.0% 100.0% 99.3% 0.03 9.07 0.00 --
21539 2019:217:19:57:27.292 7 -433.6 127.2 17635 17415 27 98.8% 100.0% 100.0% 98.7% 0.06 9.11 0.00 --
24505 2021:216:06:59:32.366 7 -424.8 109.6 14714 14542 28 98.8% 100.0% 100.0% 98.8% 0.06 9.10 0.00 --
24508 2021:221:06:58:50.380 6 -404.8 180.0 13735 13442 28 97.9% 100.0% 100.0% 97.9% 0.04 9.11 0.00 --
24510 2021:235:22:05:09.745 7 -335.5 290.2 11533 11383 16 98.7% 100.0% 100.0% 98.7% 0.06 9.09 0.00 --
24509 2021:240:22:26:59.409 7 -338.2 291.4 16183 15901 20 98.3% 100.0% 100.0% 98.3% 0.07 9.09 0.00 --
24507 2021:332:08:26:08.562 6 56.0 447.0 9829 9415 12 95.8% 100.0% 100.0% 95.8% 0.08 9.08 0.00 --
26215 2021:332:22:04:59.535 6 40.9 448.9 4933 4791 1 97.1% 100.0% 100.0% 97.1% 0.07 9.09 0.00 --
24506 2021:334:23:38:25.634 6 44.5 448.4 12259 11987 11 97.8% 100.0% 100.0% 97.8% 0.07 9.08 0.00 --
23843 2022:207:23:15:54.308 7 -434.7 -19.1 9846 9677 7 98.3% 100.0% 100.0% 98.3% 0.05 9.13 0.00 --
26479 2022:210:14:09:45.507 5 -433.7 -19.7 11524 11419 321 99.1% 100.0% 100.0% 99.0% 0.10 9.13 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.