AGASC ID 189152088

Info

Last Obs. 2025:072:13:36
magcatalog 8.50 ± 0.02
mag3 arcsec 8.52 ± 0.02
mag5 arcsec 8.52 ± 0.02
Nobs 23 (0 bad)
fok 99.6%
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
4916 2004:024:07:59:02.823 6 155.4 -371.5 18756 18689 14 100.0% 100.0% 100.0% 100.0% 0.02 8.51 0.00 --
53820 2013:091:01:15:03.146 6 294.1 -78.2 608 566 0 100.0% 100.0% 100.0% 100.0% 0.01 8.53 0.00 --
17199 2015:030:20:49:59.399 7 314.2 -410.1 18861 18773 16 99.9% 100.0% 100.0% 99.9% 0.02 8.52 0.00 --
17589 2015:031:10:37:31.885 7 314.2 -410.1 12340 12265 5 100.0% 100.0% 100.0% 100.0% 0.02 8.52 0.00 --
17590 2015:032:01:43:43.537 7 314.2 -410.1 18196 18111 15 100.0% 100.0% 100.0% 100.0% 0.02 8.52 0.00 --
17591 2015:034:04:35:43.678 7 314.2 -410.1 17367 17287 11 100.0% 100.0% 100.0% 99.9% 0.02 8.52 0.00 --
17592 2015:039:13:00:55.101 7 314.2 -410.1 12830 12738 12 99.9% 100.0% 100.0% 99.9% 0.02 8.52 0.00 --
52074 2015:046:08:27:55.205 6 383.7 -482.3 2423 2296 0 96.8% 100.0% 100.0% 96.8% 0.02 8.52 0.00 --
17200 2015:309:00:45:20.276 7 -35.1 -490.1 19663 19580 16 99.9% 100.0% 100.0% 99.8% 0.02 8.50 0.00 --
18704 2015:312:16:11:20.365 7 -35.1 -490.1 13472 13273 15 99.1% 100.0% 100.0% 99.1% 0.03 8.50 0.00 --
51519 2015:313:00:23:08.999 7 -35.1 -490.1 151 27 0 100.0% 100.0% 100.0% 100.0% 0.00 8.51 0.00 --
18705 2015:318:21:18:22.297 7 -35.1 -490.1 12213 12116 8 99.8% 100.0% 100.0% 99.8% 0.02 8.50 0.00 --
17201 2016:031:13:22:42.689 7 293.8 -444.4 30392 30058 26 99.1% 100.0% 100.0% 99.1% 0.03 8.52 0.00 --
18755 2016:034:00:57:14.570 7 293.8 -444.4 24054 23648 29 98.6% 100.0% 100.0% 98.6% 0.03 8.52 0.00 --
21058 2018:094:18:44:02.058 6 162.5 396.0 7479 7360 13 99.8% 100.0% 100.0% 99.7% 0.02 8.51 0.00 --
45572 2022:100:23:47:46.602 3 -420.3 377.5 319 257 0 98.1% 100.0% 100.0% 98.1% 0.02 8.56 0.00 --
30622 2025:063:23:42:21.425 4 403.4 77.1 3267 3201 0 100.0% 100.0% 100.0% 100.0% 0.05 8.56 0.00 --
30837 2025:064:08:18:54.031 4 401.0 84.8 3022 2959 1 100.0% 100.0% 100.0% 100.0% 0.05 8.55 0.00 --
30838 2025:064:16:25:23.495 4 400.1 85.3 2538 2469 2 100.0% 100.0% 100.0% 100.0% 0.03 8.56 0.00 --
30631 2025:067:10:51:39.080 4 401.8 91.0 2414 2346 0 99.9% 100.0% 100.0% 99.9% 0.05 8.56 0.00 --
30839 2025:067:18:26:39.516 4 400.9 91.4 2801 2738 1 99.9% 99.9% 100.0% 99.9% 0.06 8.56 0.00 --
30632 2025:072:04:08:55.178 5 325.5 259.2 3621 3560 4 100.0% 100.0% 100.0% 100.0% 0.06 8.57 0.00 --
30848 2025:072:13:36:04.954 5 316.9 270.8 3760 3693 0 100.0% 100.0% 100.0% 100.0% 0.05 8.56 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.