AGASC ID 168303408

Info

Last Obs. 2025:060:17:03
magcatalog 9.78 ± 0.02
mag3 arcsec 9.62 ± 0.04
mag5 arcsec 9.62 ± 0.04
Nobs 21 (0 bad)
fok 97.3%
f3 arcsec 96.5%
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
26464 2022:213:06:50:46.124 4 -24.4 -297.8 872 759 0 94.5% 99.5% 100.0% 94.0% 0.07 9.60 0.00 --
26465 2022:214:05:09:17.244 4 -63.3 -293.3 877 794 3 99.1% 99.9% 100.0% 99.0% 0.08 9.57 0.00 --
26466 2022:215:05:09:11.983 4 21.1 -297.7 878 764 2 93.5% 99.9% 100.0% 93.4% 0.03 9.65 0.00 --
26467 2022:216:10:40:08.375 4 -26.9 -297.6 875 758 1 96.9% 99.6% 100.0% 96.5% 0.07 9.61 0.00 --
26468 2022:217:11:33:39.615 4 -27.8 -297.4 875 784 2 97.0% 100.0% 100.0% 97.0% 0.06 9.59 0.00 --
26469 2022:218:14:23:21.272 4 -29.5 -296.8 873 790 1 98.1% 100.0% 100.0% 98.1% 0.07 9.59 0.00 --
26470 2022:219:12:18:56.004 4 -18.1 -297.9 872 787 1 98.1% 99.7% 100.0% 97.9% 0.05 9.60 0.00 --
26471 2022:220:15:51:54.395 4 -28.1 -298.0 949 835 0 94.7% 100.0% 100.0% 94.7% 0.07 9.60 0.00 --
26472 2022:221:15:35:13.671 4 -6.6 -299.0 872 790 3 97.8% 95.7% 99.7% 93.6% 0.10 9.60 0.00 --
26473 2022:222:13:00:51.640 4 5.4 -298.9 882 786 3 96.6% 98.7% 100.0% 95.3% 0.06 9.68 0.00 --
26474 2022:223:05:01:55.861 4 -0.4 -298.8 885 784 7 95.5% 93.9% 99.7% 89.6% 0.19 9.70 0.00 --
26475 2022:225:16:32:47.389 4 -34.4 -296.2 874 774 1 96.0% 88.9% 100.0% 85.4% 0.13 9.64 0.00 --
29681 2025:029:13:25:30.119 7 14.1 323.1 462 398 1 99.7% 94.2% 100.0% 94.0% 0.12 9.66 0.00 --
29718 2025:038:19:44:14.199 7 21.4 322.1 456 409 0 99.8% 83.9% 99.8% 83.7% 0.14 9.61 0.00 --
29722 2025:040:10:25:11.230 7 20.9 322.7 456 409 0 100.0% 91.4% 100.0% 91.4% 0.09 9.64 0.00 --
29723 2025:040:18:59:52.473 6 21.0 322.7 456 410 0 100.0% 92.2% 100.0% 92.2% 0.08 9.64 0.00 --
29693 2025:045:07:15:32.574 5 24.2 322.2 458 400 1 99.5% 95.5% 99.8% 95.0% 0.11 9.68 0.00 --
29695 2025:046:00:35:24.304 6 24.8 322.0 455 407 1 99.8% 99.0% 100.0% 98.8% 0.07 9.63 0.00 --
29699 2025:047:11:25:36.259 6 25.8 321.9 466 422 7 99.8% 98.3% 100.0% 98.1% 0.07 9.63 0.00 --
29704 2025:060:10:59:07.705 6 33.1 320.9 455 401 0 100.0% 85.0% 100.0% 85.0% 0.06 9.64 0.00 --
29705 2025:060:17:03:03.529 6 33.6 320.7 454 406 0 100.0% 95.1% 100.0% 95.1% 0.06 9.61 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.