AGASC ID 1021721304

Info

Last Obs. 2022:190:20:03
magcatalog 9.40 ± 0.26
mag3 arcsec 9.67 ± 0.03
mag5 arcsec 9.67 ± 0.03
Nobs 21 (0 bad)
fok 98.6%
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 mag100s ⟨ mag ⟩ σmag Comments
7797 2007:081:08:46:12.577 6 -100.0 426.7 47927 47553 95 99.2% 100.0% 100.0% 99.2% 0.04 9.66 0.00 --
10408 2009:257:10:46:17.315 5 122.1 -373.9 7394 7373 15 99.7% 99.9% 100.0% 99.7% 0.08 9.73 0.00 --
12155 2010:356:11:52:40.988 4 -347.9 223.3 2521 2471 53 98.0% 100.0% 100.0% 98.0% 0.10 9.67 0.00 --
55791 2010:356:14:06:04.807 1 -347.9 223.3 44 44 0 100.0% 100.0% 100.0% 100.0% 0.01 9.67 0.00 --
54709 2012:105:06:38:57.776 3 179.4 406.3 46 45 0 100.0% 100.0% 100.0% 100.0% 0.01 9.65 0.00 --
54373 2012:242:18:07:04.586 3 208.4 -329.0 42 42 0 100.0% 100.0% 100.0% 100.0% 0.01 9.71 0.00 --
52817 2014:114:17:26:22.584 6 285.9 349.8 316 312 1 98.7% 100.0% 100.0% 98.7% 0.02 9.67 0.00 --
16277 2014:251:04:35:13.379 5 190.1 -336.0 2526 2455 2 97.2% 99.9% 99.9% 97.1% 0.06 9.74 0.00 --
17471 2015:073:01:53:18.602 5 -140.0 414.7 2532 2475 3 97.7% 100.0% 100.0% 97.7% 0.04 9.66 0.00 --
17890 2016:055:22:30:39.504 5 -143.4 397.9 4954 4848 10 97.9% 100.0% 100.0% 97.9% 0.05 9.64 0.00 --
18461 2016:114:12:25:31.069 6 257.9 350.6 2798 2700 6 96.5% 100.0% 100.0% 96.5% 0.04 9.66 0.00 --
51085 2016:114:14:18:07.770 6 257.9 350.6 25 23 0 95.8% 95.7% 95.7% 91.7% 0.01 9.66 0.00 --
18462 2016:264:07:15:30.043 5 87.6 -371.8 2606 2578 6 98.9% 99.9% 99.9% 98.8% 0.05 9.70 0.00 --
19747 2017:135:21:28:15.039 5 393.4 109.8 2555 2532 5 99.1% 99.9% 100.0% 99.0% 0.05 9.63 0.00 --
19521 2017:260:23:00:46.726 6 99.8 -385.4 7372 7282 13 98.8% 100.0% 100.0% 98.7% 0.05 9.67 0.00 --
20794 2017:262:06:40:34.053 6 98.2 -384.4 53034 52147 86 98.3% 100.0% 100.0% 98.3% 0.09 9.67 0.00 --
19748 2017:346:04:05:26.893 4 -368.7 157.9 2513 2395 0 95.3% 100.0% 100.0% 95.3% 0.05 9.63 0.00 --
20752 2018:067:07:21:14.245 5 -166.2 399.4 2637 2555 4 96.9% 100.0% 100.0% 96.9% 0.06 9.64 0.00 --
21698 2019:119:07:23:34.514 7 317.6 314.1 2527 2449 7 97.0% 100.0% 100.0% 96.9% 0.05 9.65 0.00 --
22715 2020:258:02:17:50.184 7 133.2 -365.3 2547 2509 5 98.5% 100.0% 100.0% 98.5% 0.03 9.70 0.00 --
24325 2022:190:20:03:02.866 7 332.2 -217.1 15686 15466 23 98.6% 100.0% 100.0% 98.6% 0.07 9.72 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.