AGASC ID 234762104

Info

Last Obs. 2024:335:18:52
magcatalog 6.23 ± 0.03
mag3 arcsec 6.24 ± 0.02
mag5 arcsec 6.24 ± 0.02
Nobs 23 (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
56733 2009:296:05:07:18.597 6 108.6 -205.7 165 115 0 100.0% 100.0% 100.0% 100.0% 0.00 6.21 0.00 --
23107 2020:084:20:22:10.845 6 -196.6 360.1 13314 13260 2 100.0% 100.0% 100.0% 100.0% 0.04 6.24 0.00 --
24513 2020:308:09:39:12.950 7 343.7 -165.9 9908 9836 2 100.0% 100.0% 100.0% 100.0% 0.03 6.25 0.00 --
24855 2020:309:00:11:34.548 7 325.7 -195.3 4379 4290 1 100.0% 100.0% 100.0% 100.0% 0.02 6.21 0.00 --
23830 2020:310:14:15:25.555 7 351.9 -146.9 10881 10807 1 100.0% 100.0% 100.0% 100.0% 0.03 6.24 0.00 --
24856 2020:311:11:24:09.973 7 352.0 -146.9 11768 11691 1 100.0% 100.0% 100.0% 100.0% 0.03 6.23 0.00 --
24512 2020:312:14:16:19.759 7 351.1 -146.5 13805 13737 0 100.0% 100.0% 100.0% 100.0% 0.05 6.23 0.00 --
28151 2023:318:21:20:24.151 4 367.5 123.2 3268 3200 0 100.0% 100.0% 100.0% 100.0% 0.02 6.26 0.00 --
29066 2023:319:09:34:13.974 4 382.3 27.5 4002 3944 0 100.0% 100.0% 100.0% 100.0% 0.04 6.23 0.00 --
28570 2023:321:22:45:16.330 4 310.8 239.6 2537 2474 0 100.0% 100.0% 100.0% 100.0% 0.03 6.24 0.00 --
28576 2023:322:09:37:23.490 4 300.4 253.7 4365 4306 1 100.0% 100.0% 100.0% 100.0% 0.05 6.25 0.00 --
29067 2023:323:01:21:31.082 4 284.5 273.0 4852 4789 1 100.0% 100.0% 100.0% 100.0% 0.05 6.24 0.00 --
29068 2023:323:11:48:11.350 4 272.7 285.3 3951 3898 1 100.0% 100.0% 100.0% 100.0% 0.02 6.23 0.00 --
28574 2023:325:02:55:00.389 4 232.5 322.3 2361 2301 0 100.0% 100.0% 100.0% 100.0% 0.02 6.24 0.00 --
29081 2023:327:01:25:11.000 4 281.0 277.0 2533 2472 0 100.0% 100.0% 100.0% 100.0% 0.03 6.24 0.00 --
28575 2023:328:10:38:17.592 4 157.8 368.4 3753 3703 0 100.0% 100.0% 100.0% 100.0% 0.04 6.26 0.00 --
28571 2023:340:17:08:45.347 4 4.0 405.8 3754 3691 0 99.9% 100.0% 100.0% 99.9% 0.03 6.27 0.00 --
29101 2023:341:23:34:50.746 4 90.1 393.1 3619 3556 1 100.0% 100.0% 100.0% 100.0% 0.03 6.24 0.00 --
28572 2024:323:02:20:03.811 4 293.9 261.5 3753 3698 0 100.0% 100.0% 100.0% 100.0% 0.04 6.26 0.00 --
30627 2024:324:10:05:23.622 4 301.8 251.0 3633 3581 0 100.0% 100.0% 100.0% 100.0% 0.02 6.28 0.00 --
30628 2024:324:23:18:56.610 4 239.6 315.4 3751 3688 0 100.0% 100.0% 100.0% 100.0% 0.05 6.26 0.00 --
28573 2024:332:08:41:19.927 4 160.6 367.0 5824 5765 1 100.0% 100.0% 100.0% 100.0% 0.04 6.28 0.00 --
30640 2024:335:18:52:23.275 4 162.1 366.3 3751 3687 1 100.0% 100.0% 100.0% 100.0% 0.02 6.26 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.