AGASC ID 897581536

Info

Last Obs. 2024:190:13:51
magcatalog 8.83 ± 0.05
mag3 arcsec 8.74 ± 0.02
mag5 arcsec 8.74 ± 0.02
Nobs 31 (0 bad)
fok 99.8%
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
2684 2002:185:17:50:43.150 3 298.4 188.9 6359 6302 7 100.0% 100.0% 100.0% 100.0% 0.02 8.73 0.00 --
2685 2002:216:23:38:28.654 4 325.2 131.5 6882 6825 6 100.0% 100.0% 100.0% 100.0% 0.02 8.74 0.00 --
2683 2002:252:16:50:47.900 3 328.2 122.9 7391 7331 9 99.9% 100.0% 100.0% 99.9% 0.02 8.73 0.00 --
2797 2002:312:05:33:21.893 7 319.3 112.5 24248 24164 18 99.9% 100.0% 100.0% 99.9% 0.02 8.72 0.00 --
59639 2005:151:15:43:53.489 2 -55.5 155.9 2957 2913 6 100.0% 100.0% 100.0% 100.0% 0.03 8.73 0.00 --
6769 2006:147:12:16:01.898 4 -337.9 -71.0 20151 19990 27 99.6% 100.0% 100.0% 99.6% 0.02 8.74 0.00 --
9132 2008:220:20:29:40.358 4 326.0 124.8 70391 70238 130 99.9% 100.0% 100.0% 99.9% 0.02 8.73 0.00 --
9133 2008:223:23:35:33.297 4 326.3 123.9 26978 26893 48 99.9% 100.0% 100.0% 99.9% 0.02 8.73 0.00 --
14616 2013:118:19:18:45.236 4 -337.0 -81.9 7460 7377 7 99.9% 100.0% 100.0% 99.9% 0.03 8.74 0.00 --
15645 2013:119:00:10:08.417 4 -334.0 -80.5 26093 25750 29 98.9% 100.0% 100.0% 98.9% 0.03 8.74 0.00 --
16748 2015:150:02:18:13.239 3 -347.8 -13.0 14776 14676 17 99.9% 100.0% 100.0% 99.9% 0.02 8.74 0.00 --
16749 2015:219:20:06:13.224 4 313.8 124.6 15053 14957 16 99.7% 100.0% 100.0% 99.7% 0.03 8.72 0.00 --
16750 2015:311:15:48:23.747 4 319.4 106.9 14779 14627 27 99.6% 100.0% 100.0% 99.6% 0.02 8.72 0.00 --
29445 2024:165:14:09:37.747 3 -249.7 -18.0 5213 5151 1 99.9% 99.7% 100.0% 99.7% 0.07 8.78 0.00 --
28007 2024:169:04:40:18.816 4 -344.1 -33.5 3475 3419 0 99.9% 99.7% 100.0% 99.6% 0.07 8.80 0.00 --
29456 2024:169:18:56:50.769 4 -344.7 -30.1 3211 3149 2 99.9% 99.8% 100.0% 99.8% 0.08 8.80 0.00 --
29457 2024:171:01:41:02.045 4 -344.9 -21.0 3792 3730 0 99.9% 99.9% 100.0% 99.8% 0.07 8.79 0.00 --
29458 2024:172:07:49:18.950 3 -346.4 -7.6 3839 3779 1 99.9% 100.0% 100.0% 99.9% 0.08 8.78 0.00 --
29459 2024:174:08:52:53.684 4 -347.0 12.3 3806 3748 1 100.0% 99.4% 100.0% 99.4% 0.08 8.76 0.00 --
29460 2024:175:00:59:51.330 4 -345.9 45.2 2825 2775 0 100.0% 99.8% 100.0% 99.8% 0.06 8.78 0.00 --
28865 2024:176:16:05:57.573 3 -323.1 140.5 3585 3539 3 100.0% 99.9% 100.0% 99.9% 0.06 8.78 0.00 --
29467 2024:177:08:58:18.393 3 -306.7 174.5 3591 3548 3 99.9% 100.0% 100.0% 99.9% 0.06 8.78 0.00 --
29468 2024:181:13:28:23.841 3 209.9 274.2 3536 3467 1 99.9% 99.9% 100.0% 99.8% 0.04 8.78 0.00 --
29469 2024:182:11:55:25.807 3 240.4 244.2 2600 2543 2 99.9% 100.0% 100.0% 99.9% 0.04 8.79 0.00 --
28866 2024:184:05:51:50.521 3 271.5 206.6 3784 3731 2 100.0% 100.0% 100.0% 100.0% 0.05 8.78 0.00 --
29472 2024:185:04:03:40.783 3 281.1 193.7 3780 3732 1 99.9% 99.9% 100.0% 99.9% 0.07 8.77 0.00 --
29473 2024:185:21:02:15.763 3 286.3 185.2 3752 3708 2 100.0% 99.9% 100.0% 99.9% 0.06 8.78 0.00 --
29474 2024:187:04:51:05.458 3 292.0 175.0 3811 3760 0 100.0% 99.9% 100.0% 99.9% 0.07 8.77 0.00 --
29475 2024:187:18:24:57.136 3 293.9 171.3 2710 2666 0 99.9% 99.8% 100.0% 99.7% 0.05 8.78 0.00 --
28877 2024:190:00:00:06.000 3 301.1 159.1 3326 3269 1 99.9% 98.5% 100.0% 98.4% 0.07 8.76 0.00 --
29480 2024:190:13:51:19.078 4 332.1 51.7 3459 3397 2 100.0% 100.0% 100.0% 100.0% 0.06 8.78 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.