AGASC ID 625745104

Info

Last Obs. 2025:004:11:38
magcatalog 7.06 ± 0.02
mag3 arcsec 7.06 ± 0.01
mag5 arcsec 7.06 ± 0.01
Nobs 18 (0 bad)
fok 100.0%
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
4395 2003:008:20:48:22.189 4 477.1 452.7 49671 49608 12 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
3744 2003:010:16:07:04.861 4 477.1 452.7 81372 81306 20 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
4373 2003:013:07:24:06.978 5 477.1 452.7 84991 84902 22 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
4374 2003:015:23:49:57.851 5 477.1 452.7 83749 83679 21 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
4396 2003:018:14:24:05.787 5 477.1 452.7 81565 81496 21 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
3498 2003:021:05:59:41.810 5 477.1 452.7 34298 34233 89 100.0% 99.9% 99.9% 99.8% 0.02 7.06 0.00 --
59295 2005:324:17:15:42.656 4 347.7 -150.3 102 40 0 100.0% 100.0% 100.0% 100.0% 0.00 7.05 0.00 --
23120 2020:011:11:57:08.829 5 437.0 488.1 19665 19585 6 100.0% 100.0% 100.0% 100.0% 0.03 7.05 0.00 --
24830 2020:327:07:43:04.093 4 -473.1 471.7 13229 13160 11 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
24622 2020:328:08:52:59.808 4 -460.5 483.5 12350 12271 6 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
24873 2020:329:02:41:16.193 3 -450.5 491.5 12332 12279 3 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
24874 2020:329:15:08:44.213 4 -444.2 497.4 12836 12742 6 100.0% 100.0% 100.0% 100.0% 0.02 7.06 0.00 --
30081 2024:362:02:35:36.571 4 64.8 251.6 2607 2556 0 100.0% 100.0% 100.0% 100.0% 0.03 7.08 0.00 --
65518 2025:002:08:11:25.231 7 136.4 218.2 3849 3792 3 100.0% 100.0% 100.0% 100.0% 0.04 7.09 0.00 --
30707 2025:003:03:30:50.971 6 486.2 443.4 2807 2749 2 100.0% 100.0% 100.0% 100.0% 0.02 7.10 0.00 --
30083 2025:003:20:10:55.729 7 144.1 212.6 4973 4911 1 100.0% 100.0% 100.0% 100.0% 0.03 7.09 0.00 --
30703 2025:004:04:17:10.732 7 145.9 211.3 3095 3043 0 100.0% 100.0% 100.0% 100.0% 0.03 7.09 0.00 --
30704 2025:004:11:38:26.834 7 163.2 197.1 5033 4959 0 100.0% 100.0% 100.0% 100.0% 0.03 7.08 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.