AGASC ID 302524496

Info

Last Obs. 2022:310:06:26
magcatalog 8.37 ± 0.10
mag3 arcsec 8.40 ± 0.02
mag5 arcsec 8.40 ± 0.02
Nobs 15 (0 bad)
fok 98.1%
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
5001 2004:358:13:05:33.987 7 96.6 -418.6 5255 5254 4 100.0% 100.0% 100.0% 100.0% 0.01 8.41 0.00 --
54159 2012:322:03:50:41.708 4 64.4 359.7 785 785 0 100.0% 100.0% 100.0% 100.0% 0.03 8.41 0.00 --
51537 2015:302:12:00:04.245 4 256.6 -136.7 5717 5698 234 99.7% 99.7% 100.0% 99.4% 0.04 8.42 0.00 --
22459 2020:169:10:55:23.289 5 -39.1 -246.5 21042 21012 27 99.9% 100.0% 100.0% 99.8% 0.03 8.39 0.00 --
23283 2020:170:07:48:44.394 5 -39.7 -246.1 24473 24441 31 99.9% 100.0% 100.0% 99.9% 0.03 8.39 0.00 --
22460 2020:229:02:03:35.860 7 71.4 -236.0 16675 16609 21 99.6% 100.0% 100.0% 99.6% 0.03 8.42 0.00 --
22461 2020:304:20:06:48.677 6 244.6 69.1 9816 9713 16 99.0% 100.0% 100.0% 99.0% 0.03 8.40 0.00 --
24848 2020:305:18:49:11.470 6 245.0 68.7 7388 7308 4 98.9% 100.0% 100.0% 98.9% 0.03 8.39 0.00 --
25488 2021:322:10:33:39.017 7 -204.8 -387.5 9843 9689 15 98.4% 100.0% 100.0% 98.4% 0.03 8.40 0.00 --
26207 2021:323:02:58:44.194 7 -203.4 -388.1 9833 9717 9 98.8% 100.0% 100.0% 98.8% 0.04 8.39 0.00 --
26208 2021:323:17:43:49.378 7 -202.8 -388.5 6259 6201 16 99.1% 100.0% 100.0% 99.1% 0.03 8.40 0.00 --
25828 2022:307:06:01:29.775 7 -342.1 -284.3 6303 5950 2 94.4% 100.0% 100.0% 94.4% 0.07 8.40 0.00 --
27531 2022:309:02:25:40.228 6 -348.1 -278.1 7382 7199 6 97.5% 100.0% 100.0% 97.5% 0.03 8.41 0.00 --
25827 2022:309:22:17:48.238 6 -360.6 -261.8 6253 5254 0 84.0% 100.0% 100.0% 84.0% 0.05 8.42 0.00 --
27530 2022:310:06:26:58.329 6 -355.4 -268.4 7741 7174 4 92.7% 100.0% 100.0% 92.7% 0.04 8.42 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.