AGASC ID 684983944

Info

Last Obs. 2024:244:05:40
magcatalog 8.50 ± 0.02
mag3 arcsec 8.51 ± 0.01
mag5 arcsec 8.51 ± 0.01
Nobs 27 (0 bad)
fok 99.4%
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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
57662 2008:217:15:02:04.009 4 391.3 -156.2 3221 3162 4 99.9% 99.9% 100.0% 99.8% 0.02 8.53 0.00 --
10406 2009:268:08:50:07.969 3 -107.4 -324.1 22212 22142 30 99.9% 100.0% 100.0% 99.9% 0.02 8.52 0.00 --
12000 2009:272:12:12:00.386 3 -85.9 -329.1 36690 36540 59 99.9% 100.0% 100.0% 99.9% 0.02 8.52 0.00 --
10405 2009:275:22:23:01.296 3 -85.9 -329.1 40752 40654 69 99.9% 100.0% 100.0% 99.9% 0.03 8.52 0.00 --
12237 2010:269:19:34:10.031 7 -480.3 -49.6 14779 14712 16 99.9% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
13306 2011:206:07:18:23.031 3 -78.8 360.8 77876 77705 87 99.9% 100.0% 100.0% 99.9% 0.02 8.50 0.00 --
13307 2011:208:20:48:03.297 3 -78.8 360.8 39533 39450 45 99.9% 100.0% 100.0% 99.9% 0.02 8.50 0.00 --
13305 2011:214:03:18:08.097 3 -78.8 360.8 81509 81392 87 99.9% 100.0% 100.0% 99.9% 0.02 8.50 0.00 --
14194 2011:221:09:49:15.601 4 -78.8 360.8 7161 7013 7 99.1% 100.0% 100.0% 99.1% 0.02 8.50 0.00 --
55253 2011:221:14:22:14.245 1 -78.8 360.8 87 48 0 100.0% 100.0% 100.0% 100.0% 0.01 8.50 0.00 --
15107 2013:265:22:55:19.466 4 -428.2 -342.0 5067 5010 5 99.9% 100.0% 100.0% 99.9% 0.02 8.53 0.00 --
15312 2013:272:15:41:25.676 4 -444.8 -374.5 9895 9843 5 99.9% 100.0% 100.0% 99.9% 0.02 8.53 0.00 --
21506 2019:252:09:50:23.825 3 -217.4 -255.0 15267 15132 19 99.5% 100.0% 100.0% 99.5% 0.03 8.51 0.00 --
22842 2019:255:01:56:38.842 3 -180.9 -279.0 26973 26486 10 98.4% 100.0% 100.0% 98.4% 0.08 8.51 0.00 --
21507 2019:365:17:10:44.633 3 74.1 -320.1 22098 21765 19 98.9% 100.0% 100.0% 98.9% 0.04 8.53 0.00 --
23113 2020:001:19:49:04.024 3 75.8 -320.0 21673 21311 16 98.7% 100.0% 100.0% 98.7% 0.04 8.52 0.00 --
23547 2020:309:15:37:51.052 5 264.1 483.6 9906 9759 17 99.2% 100.0% 100.0% 99.2% 0.02 8.52 0.00 --
23548 2020:315:16:48:43.526 5 258.4 487.1 9904 9669 6 98.5% 100.0% 100.0% 98.4% 0.04 8.52 0.00 --
23549 2020:330:22:48:13.541 5 243.2 495.4 9992 9708 7 97.7% 100.0% 100.0% 97.7% 0.06 8.53 0.00 --
23550 2020:359:02:03:30.564 5 253.7 489.9 9873 9651 10 98.7% 100.0% 100.0% 98.7% 0.04 8.51 0.00 --
23551 2021:102:13:45:58.168 4 -312.0 -441.5 8438 8226 20 98.4% 100.0% 100.0% 98.4% 0.03 8.50 0.00 --
25008 2021:103:01:56:56.116 4 -312.7 -441.1 9901 9588 8 97.5% 100.0% 100.0% 97.5% 0.03 8.50 0.00 --
23552 2021:158:04:12:04.262 4 -251.1 -476.5 19655 19158 28 97.7% 100.0% 100.0% 97.7% 0.03 8.52 0.00 --
46103 2021:248:23:32:09.464 2 -305.0 71.3 318 263 2 99.2% 100.0% 100.0% 99.2% 0.02 8.54 0.00 --
27342 2022:253:23:24:33.785 4 -254.6 -264.5 5022 4875 11 98.7% 100.0% 100.0% 98.7% 0.04 8.53 0.00 --
43195 2024:241:16:35:47.471 2 -252.4 -240.6 813 761 0 99.9% 100.0% 100.0% 99.9% 0.04 8.55 0.00 --
43187 2024:244:05:40:16.010 2 -152.7 -314.2 819 764 0 99.9% 99.0% 100.0% 98.8% 0.04 8.56 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.