AGASC ID 183512560

Info

Last Obs. 2025:039:05:05
magcatalog 8.48 ± 0.02
mag3 arcsec 8.52 ± 0.02
mag5 arcsec 8.52 ± 0.02
Nobs 28 (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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
7897 2006:357:08:47:14.268 4 116.1 16.7 4533 4478 3 100.0% 100.0% 100.0% 100.0% 0.02 8.48 0.00 --
30381 2025:007:00:31:24.245 4 99.2 18.1 4016 3948 0 100.0% 100.0% 100.0% 100.0% 0.07 8.51 0.00 --
30388 2025:007:08:56:44.531 4 99.0 18.4 3264 3197 0 100.0% 100.0% 100.0% 100.0% 0.07 8.52 0.00 --
30391 2025:007:16:29:06.165 4 98.5 18.9 2660 2591 0 99.9% 100.0% 100.0% 99.9% 0.04 8.52 0.00 --
30400 2025:008:13:20:32.085 4 96.2 20.5 2534 2472 1 100.0% 100.0% 100.0% 100.0% 0.07 8.53 0.00 --
30721 2025:008:21:17:57.986 4 97.2 20.3 3264 3204 0 100.0% 100.0% 100.0% 100.0% 0.05 8.53 0.00 --
30722 2025:009:04:50:54.922 4 97.4 20.4 2535 2472 1 100.0% 100.0% 100.0% 100.0% 0.04 8.53 0.00 --
30723 2025:009:11:39:38.786 4 97.4 20.6 2536 2469 3 99.8% 100.0% 100.0% 99.8% 0.06 8.53 0.00 --
30724 2025:009:18:28:23.334 4 97.3 20.9 2533 2474 0 100.0% 100.0% 100.0% 100.0% 0.03 8.53 0.00 --
30725 2025:010:01:17:08.635 4 97.3 21.2 2539 2470 2 100.0% 100.0% 100.0% 100.0% 0.05 8.53 0.00 --
30726 2025:010:08:05:54.765 4 97.2 21.6 2552 2482 0 100.0% 100.0% 100.0% 100.0% 0.06 8.53 0.00 --
30021 2025:019:09:41:49.972 6 96.5 34.1 2881 2813 1 99.9% 100.0% 100.0% 99.9% 0.06 8.51 0.00 --
30382 2025:021:20:59:30.912 7 94.4 41.6 2774 2711 1 100.0% 100.0% 100.0% 100.0% 0.05 8.52 0.00 --
30386 2025:022:12:03:51.578 7 94.0 43.7 2774 2709 2 99.9% 100.0% 100.0% 99.9% 0.06 8.52 0.00 --
30389 2025:022:19:24:15.720 7 92.8 45.3 2530 2467 1 99.9% 100.0% 100.0% 99.9% 0.04 8.53 0.00 --
30384 2025:023:02:29:35.609 7 91.6 47.0 2629 2567 1 100.0% 100.0% 100.0% 100.0% 0.04 8.53 0.00 --
30385 2025:025:16:32:45.983 7 90.6 52.4 2533 2475 0 100.0% 100.0% 100.0% 100.0% 0.08 8.52 0.00 --
30383 2025:027:05:22:19.023 5 78.9 74.2 2726 2662 1 100.0% 100.0% 100.0% 100.0% 0.05 8.51 0.00 --
30755 2025:027:12:37:07.964 5 71.6 82.7 2582 2514 1 100.0% 100.0% 100.0% 100.0% 0.05 8.52 0.00 --
30756 2025:027:21:01:04.118 5 68.7 84.8 3260 3202 1 100.0% 100.0% 100.0% 100.0% 0.06 8.53 0.00 --
30757 2025:028:12:21:51.425 6 60.3 92.9 2533 2476 1 100.0% 100.0% 100.0% 100.0% 0.06 8.53 0.00 --
30396 2025:030:04:56:14.923 5 35.6 109.3 2603 2539 3 100.0% 100.0% 100.0% 100.0% 0.05 8.52 0.00 --
30758 2025:030:14:49:43.454 5 24.5 113.8 2516 2395 0 100.0% 100.0% 100.0% 99.9% 0.06 8.51 0.00 --
30759 2025:033:04:03:53.957 7 -45.9 112.2 2845 2784 0 99.9% 100.0% 100.0% 99.9% 0.08 8.50 0.00 --
30397 2025:038:03:57:37.288 4 -113.5 39.6 2525 2476 0 100.0% 100.0% 100.0% 100.0% 0.09 8.51 0.00 --
30774 2025:038:12:15:11.942 4 -113.7 39.7 2523 2482 0 100.0% 100.0% 100.0% 100.0% 0.07 8.52 0.00 --
30775 2025:038:20:32:56.225 4 -114.2 39.9 2527 2481 0 100.0% 100.0% 100.0% 100.0% 0.06 8.51 0.00 --
30776 2025:039:05:05:58.379 4 -114.5 40.1 2524 2476 2 100.0% 100.0% 100.0% 100.0% 0.06 8.51 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.