AGASC ID 189140584

Info

Last Obs. 2024:074:01:32
magcatalog 7.33 ± 0.06
mag3 arcsec 7.37 ± 0.01
mag5 arcsec 7.37 ± 0.01
Nobs 23 (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
12999 2010:308:19:16:45.766 3 372.3 -94.5 2589 2505 4 99.9% 100.0% 100.0% 99.9% 0.02 7.38 0.00 --
17199 2015:030:20:49:59.399 5 -98.2 -83.5 18857 18781 9 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
17589 2015:031:10:37:31.885 5 -98.2 -83.5 12336 12264 8 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
17590 2015:032:01:43:43.537 5 -98.2 -83.5 18189 18116 5 100.0% 100.0% 100.0% 100.0% 0.01 7.37 0.00 --
17591 2015:034:04:35:43.678 5 -98.2 -83.5 17361 17292 10 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
17592 2015:039:13:00:55.101 5 -98.2 -83.5 12826 12747 4 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
52074 2015:046:08:27:55.205 4 -87.7 -245.0 2420 2371 2 100.0% 100.0% 100.0% 100.0% 0.01 7.36 0.00 --
17200 2015:309:00:45:20.276 6 -189.7 12.3 19663 19601 11 100.0% 100.0% 100.0% 100.0% 0.02 7.36 0.00 --
18704 2015:312:16:11:20.365 6 -189.7 12.3 13472 13394 5 100.0% 100.0% 100.0% 100.0% 0.02 7.36 0.00 --
51519 2015:313:00:23:08.999 5 -189.7 12.3 140 27 0 100.0% 100.0% 100.0% 100.0% 0.00 7.36 0.00 --
18705 2015:318:21:18:22.297 6 -189.7 12.3 12212 12136 0 100.0% 100.0% 100.0% 100.0% 0.02 7.36 0.00 --
17201 2016:031:13:22:42.689 5 -104.0 -99.7 30388 30322 19 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
18755 2016:034:00:57:14.570 5 -104.0 -99.7 24047 23973 15 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
21058 2018:094:18:44:02.058 4 150.4 -128.5 7479 7375 11 100.0% 100.0% 100.0% 100.0% 0.01 7.38 0.00 --
45572 2022:100:23:47:46.602 0 -386.1 -147.9 313 262 0 100.0% 100.0% 100.0% 100.0% 0.02 7.39 0.00 --
27219 2023:074:05:23:07.086 3 179.5 215.3 4113 4069 2 100.0% 100.0% 100.0% 100.0% 0.02 7.36 0.00 --
27724 2023:074:18:10:34.702 3 174.3 220.0 3653 3605 4 99.9% 100.0% 100.0% 99.9% 0.02 7.36 0.00 --
27746 2023:076:17:37:33.401 3 151.1 237.3 2990 2945 1 100.0% 100.0% 100.0% 100.0% 0.02 7.36 0.00 --
27746 2023:076:17:37:33.401 3 150.9 237.1 2945 2945 1 100.0% 100.0% 100.0% 100.0% 0.03 7.36 0.00 --
27747 2023:077:07:46:45.757 3 146.3 240.8 4147 4097 3 99.8% 100.0% 100.0% 99.8% 0.02 7.35 0.00 --
26948 2024:057:06:48:55.515 3 268.4 -15.7 3268 3200 2 100.0% 100.0% 100.0% 100.0% 0.02 7.41 0.00 --
29289 2024:057:15:26:10.696 3 269.2 -11.7 3266 3201 0 100.0% 100.0% 100.0% 100.0% 0.02 7.40 0.00 --
27220 2024:073:18:08:43.242 3 189.2 207.1 2532 2469 1 100.0% 100.0% 100.0% 100.0% 0.03 7.38 0.00 --
29328 2024:074:01:32:20.476 3 185.7 210.4 2528 2471 1 100.0% 100.0% 100.0% 100.0% 0.02 7.38 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.