AGASC ID 944779088

Info

Last Obs. 2024:126:15:00
magcatalog 7.51 ± 0.10
mag3 arcsec 7.51 ± 0.01
mag5 arcsec 7.51 ± 0.01
Nobs 13 (0 bad)
fok 99.9%
f3 arcsec 99.7%
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
61240 2002:097:07:49:32.234 0 451.1 176.5 17727 17649 34 100.0% 97.0% 100.0% 97.0% 0.01 7.51 0.00 --
61239 2002:097:18:20:42.234 0 452.8 171.9 10293 10238 25 99.9% 100.0% 100.0% 99.9% 0.01 7.51 0.00 --
20734 2019:079:21:13:54.380 5 469.2 57.3 16262 16121 14 100.0% 100.0% 100.0% 100.0% 0.02 7.51 0.00 --
22154 2019:080:17:44:39.478 5 469.3 57.3 20654 20530 16 99.9% 100.0% 100.0% 99.9% 0.02 7.51 0.00 --
22178 2019:189:00:19:04.485 5 19.3 -464.5 20662 20512 16 100.0% 100.0% 100.0% 100.0% 0.02 7.52 0.00 --
23382 2021:067:23:08:26.854 5 427.3 210.2 13825 13698 150 99.9% 100.0% 100.0% 99.9% 0.04 7.50 0.00 --
23383 2021:089:15:28:38.033 5 461.5 -73.1 15096 14984 10 100.0% 100.0% 100.0% 100.0% 0.02 7.52 0.00 --
23384 2021:090:07:48:19.491 5 461.8 -82.7 14801 14688 15 100.0% 100.0% 100.0% 100.0% 0.02 7.52 0.00 --
23385 2021:092:11:34:24.979 6 457.3 -111.1 13825 13648 5 99.6% 100.0% 100.0% 99.6% 0.02 7.52 0.00 --
23386 2021:093:01:42:31.294 5 455.6 -118.5 13825 13592 8 99.3% 100.0% 100.0% 99.3% 0.03 7.52 0.00 --
24989 2021:095:00:19:43.911 5 445.4 -141.1 14797 14664 8 100.0% 100.0% 100.0% 100.0% 0.02 7.51 0.00 --
43828 2024:003:18:29:59.488 0 -290.2 378.8 1928 1475 2 100.0% 100.0% 100.0% 100.0% 0.02 7.53 0.00 --
28953 2024:126:15:00:30.425 3 262.2 -381.2 1312 1265 0 99.9% 100.0% 100.0% 99.9% 0.02 7.53 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.