AGASC ID 894973544

Info

Last Obs. 2023:077:14:45
magcatalog 8.08 ± 0.11
mag3 arcsec 8.04 ± 0.01
mag5 arcsec 8.04 ± 0.01
Nobs 27 (0 bad)
fok 99.9%
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
3798 2003:194:13:12:06.942 7 468.1 -243.3 20207 19557 15 100.0% 100.0% 100.0% 100.0% 0.02 8.03 0.00 --
13161 2010:297:10:23:42.206 4 444.2 -279.1 14820 14809 19 99.9% 100.0% 100.0% 99.9% 0.01 8.04 0.00 --
11051 2010:297:19:27:15.895 4 443.6 -278.3 5631 5625 11 99.9% 100.0% 100.0% 99.9% 0.02 8.03 0.00 --
13225 2011:048:08:43:55.022 7 -468.8 292.4 14703 14695 15 99.9% 100.0% 100.0% 99.9% 0.02 8.04 0.00 --
13252 2011:119:16:46:44.405 4 -458.7 308.3 19590 19581 25 100.0% 100.0% 100.0% 100.0% 0.02 8.04 0.00 --
13705 2011:248:16:47:04.594 4 448.3 -269.7 6913 6912 6 100.0% 100.0% 100.0% 100.0% 0.02 8.03 0.00 --
14339 2011:251:03:21:14.090 4 448.3 -269.7 16981 16964 14 99.9% 100.0% 100.0% 99.9% 0.02 8.03 0.00 --
12454 2011:307:05:01:02.826 4 440.2 -281.1 5444 5441 4 100.0% 100.0% 100.0% 100.0% 0.01 8.03 0.00 --
13706 2012:134:17:35:23.612 4 -456.1 315.8 23097 23090 19 100.0% 100.0% 100.0% 100.0% 0.02 8.03 0.00 --
13708 2012:212:09:35:24.612 4 454.3 -258.2 5425 5424 3 100.0% 100.0% 100.0% 100.0% 0.02 8.04 0.00 --
14475 2012:261:15:56:38.105 4 445.0 -272.3 15686 15679 14 100.0% 100.0% 100.0% 100.0% 0.01 8.04 0.00 --
14476 2012:302:03:05:49.545 4 439.8 -280.7 14730 14669 7 99.6% 100.0% 100.0% 99.6% 0.02 8.04 0.00 --
14477 2013:036:04:01:29.937 6 -470.7 290.6 14700 14657 21 99.7% 100.0% 100.0% 99.7% 0.01 8.03 0.00 --
14625 2013:053:08:05:48.249 7 -467.8 297.8 24342 24335 21 100.0% 100.0% 100.0% 100.0% 0.02 8.03 0.00 --
53924 2013:053:22:33:16.174 1 -467.8 297.8 45 45 0 100.0% 100.0% 100.0% 100.0% 0.00 8.03 0.00 --
15615 2013:054:10:03:48.452 7 -467.8 297.8 41720 41679 36 99.9% 100.0% 100.0% 99.9% 0.02 8.03 0.00 --
14478 2013:197:20:53:50.238 6 413.3 -317.6 14708 14705 5 100.0% 100.0% 100.0% 100.0% 0.02 8.04 0.00 --
14479 2014:196:05:14:41.734 4 458.8 -249.3 14728 14724 6 100.0% 100.0% 100.0% 100.0% 0.02 8.05 0.00 --
16638 2014:198:11:42:07.164 4 474.7 -221.6 35504 35500 13 100.0% 100.0% 100.0% 100.0% 0.02 8.05 0.00 --
52632 2014:199:08:09:05.289 2 474.7 -221.6 192 192 1 100.0% 100.0% 100.0% 100.0% 0.02 8.05 0.00 --
15750 2014:201:16:25:39.583 6 474.7 -221.6 11415 11399 7 99.9% 100.0% 100.0% 99.9% 0.03 8.06 0.00 --
52621 2014:201:23:28:42.393 2 474.7 -221.6 216 216 1 100.0% 100.0% 100.0% 100.0% 0.01 8.05 0.00 --
17779 2016:195:18:35:06.589 4 431.1 -294.4 34130 34112 29 100.0% 100.0% 100.0% 99.9% 0.02 8.04 0.00 --
50855 2016:196:14:15:33.949 2 431.1 -294.4 31 31 0 100.0% 100.0% 100.0% 100.0% 0.00 8.03 0.00 --
18881 2016:197:11:44:18.799 4 431.1 -294.4 32100 32083 30 99.9% 100.0% 100.0% 99.9% 0.02 8.04 0.00 --
27736 2023:075:00:32:19.237 6 -468.7 297.2 2720 2678 1 98.5% 100.0% 100.0% 98.5% 0.06 8.05 0.00 --
27736 2023:077:14:45:26.800 6 -468.0 297.6 2725 2686 1 98.6% 100.0% 100.0% 98.6% 0.04 8.05 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.