AGASC ID 1198282824

Info

Last Obs. 2023:254:17:25
magcatalog 7.24 ± 0.09
mag3 arcsec 7.27 ± 0.01
mag5 arcsec 7.27 ± 0.01
Nobs 17 (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
5494 2006:060:08:55:00.239 6 -289.2 29.0 5017 4968 4 100.0% 100.0% 100.0% 100.0% 0.01 7.27 0.00 --
5495 2006:060:12:11:00.582 7 -217.9 284.3 5021 4972 4 100.0% 100.0% 100.0% 100.0% 0.01 7.26 0.00 --
14054 2012:043:08:33:15.481 7 -425.1 -18.0 36728 36648 21 100.0% 100.0% 100.0% 100.0% 0.01 7.28 0.00 --
14447 2012:172:15:19:13.443 3 196.8 377.3 19170 19108 17 100.0% 100.0% 100.0% 100.0% 0.01 7.26 0.00 --
14352 2012:174:13:14:24.268 4 196.8 377.3 19657 19601 9 100.0% 100.0% 100.0% 100.0% 0.01 7.26 0.00 --
13513 2012:243:10:05:24.296 6 397.8 -81.2 17220 17167 3 100.0% 100.0% 100.0% 100.0% 0.01 7.27 0.00 --
15494 2012:246:11:50:01.287 7 397.8 -81.2 17709 17638 16 100.0% 100.0% 100.0% 100.0% 0.01 7.27 0.00 --
14666 2012:363:14:34:41.990 7 -370.6 -191.3 24528 24473 15 100.0% 100.0% 100.0% 100.0% 0.01 7.27 0.00 --
53485 2013:223:10:19:24.956 5 153.3 -107.5 1367 1318 4 99.9% 100.0% 100.0% 99.9% 0.02 7.28 0.00 --
15500 2013:236:21:00:12.493 6 458.2 -299.3 24867 24796 11 100.0% 100.0% 100.0% 100.0% 0.02 7.27 0.00 --
15499 2013:287:22:45:51.516 7 71.8 -397.7 12095 12045 5 100.0% 100.0% 100.0% 100.0% 0.01 7.27 0.00 --
16490 2013:288:20:18:53.503 6 71.8 -397.7 12095 12024 6 100.0% 100.0% 100.0% 100.0% 0.01 7.27 0.00 --
18619 2016:076:16:40:42.459 5 -371.7 224.5 15749 15675 8 100.0% 99.5% 99.9% 99.5% 0.01 7.26 0.00 --
18620 2016:083:23:56:53.259 6 -342.3 268.0 15263 15192 6 100.0% 100.0% 100.0% 100.0% 0.01 7.25 0.00 --
18621 2016:093:00:19:55.397 7 -256.0 352.0 15911 15848 9 100.0% 100.0% 100.0% 100.0% 0.01 7.25 0.00 --
51137 2016:093:10:07:08.470 5 -256.0 352.0 140 28 0 100.0% 100.0% 100.0% 100.0% 0.01 7.25 0.00 --
26516 2023:254:17:25:19.495 3 442.2 -231.4 4877 4812 1 100.0% 100.0% 100.0% 100.0% 0.02 7.27 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.