AGASC ID 189140584

Info

Last Obs. 2023:077:07:46
magcatalog 7.33 ± 0.06
mag3 arcsec 7.37 ± 0.01
mag5 arcsec 7.37 ± 0.01
Nobs 19 (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
12999 2010:308:19:16:45.766 3 372.1 -94.3 2507 2504 4 99.9% 100.0% 100.0% 99.9% 0.02 7.38 0.00 --
17199 2015:030:20:49:59.399 5 -98.1 -83.4 18783 18780 9 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
17589 2015:031:10:37:31.885 5 -98.1 -83.4 12267 12263 8 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
17590 2015:032:01:43:43.537 5 -98.1 -83.4 18118 18116 5 100.0% 100.0% 100.0% 100.0% 0.01 7.37 0.00 --
17591 2015:034:04:35:43.678 5 -98.1 -83.4 17295 17291 10 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
17592 2015:039:13:00:55.101 5 -98.1 -83.4 12749 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 -244.8 2372 2371 2 100.0% 100.0% 100.0% 100.0% 0.01 7.36 0.00 --
17200 2015:309:00:45:20.276 6 -189.6 12.3 19608 19600 11 100.0% 100.0% 100.0% 100.0% 0.02 7.36 0.00 --
18704 2015:312:16:11:20.365 6 -189.6 12.3 13398 13393 5 100.0% 100.0% 100.0% 100.0% 0.02 7.36 0.00 --
51519 2015:313:00:23:08.999 5 -189.6 12.3 28 27 0 100.0% 100.0% 100.0% 100.0% 0.00 7.36 0.00 --
18705 2015:318:21:18:22.297 6 -189.6 12.3 12136 12136 0 100.0% 100.0% 100.0% 100.0% 0.02 7.36 0.00 --
17201 2016:031:13:22:42.689 5 -103.9 -99.7 30333 30322 19 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
18755 2016:034:00:57:14.570 5 -103.9 -99.7 23976 23973 15 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
21058 2018:094:18:44:02.058 4 150.3 -128.4 7417 7374 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 -147.9 262 262 0 100.0% 100.0% 100.0% 100.0% 0.02 7.39 0.00 --
27219 2023:074:05:23:07.086 3 179.4 215.2 4069 4068 2 100.0% 100.0% 100.0% 100.0% 0.02 7.37 0.00 --
27746 2023:074:18:10:34.702 3 174.2 219.8 3607 3604 4 99.9% 100.0% 100.0% 99.9% 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 3 146.1 240.7 4105 4097 3 99.8% 100.0% 100.0% 99.8% 0.04 7.36 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.