AGASC ID 640558576

Info

Last Obs. 2023:126:16:13
magcatalog 9.07 ± 0.11
mag3 arcsec 9.16 ± 0.03
mag5 arcsec 9.16 ± 0.03
Nobs 30 (0 bad)
fok 98.4%
f3 arcsec 99.9%
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
25893 2022:176:22:53:40.500 4 -299.0 43.4 12257 12005 17 97.9% 100.0% 100.0% 97.9% 0.08 9.17 0.00 --
25391 2022:321:16:26:12.241 6 303.1 35.5 7102 6953 6 97.9% 100.0% 100.0% 97.9% 0.07 9.14 0.00 --
25873 2022:327:07:31:26.569 6 301.3 54.6 8028 7835 6 97.6% 100.0% 100.0% 97.6% 0.12 9.14 0.00 --
25888 2022:340:04:48:39.647 6 304.7 29.7 7352 7314 4 99.5% 100.0% 100.0% 99.4% 0.09 9.14 0.00 --
25879 2023:007:00:38:35.886 5 296.7 -61.8 7352 7278 5 99.0% 99.4% 100.0% 98.4% 0.07 9.20 0.00 --
25886 2023:012:20:45:55.191 5 298.5 -42.9 6688 6553 6 98.0% 100.0% 100.0% 97.9% 0.07 9.21 0.00 --
25871 2023:018:00:17:12.945 5 275.3 -118.7 6709 6525 3 97.3% 99.6% 100.0% 96.9% 0.09 9.20 0.00 --
25891 2023:027:08:50:55.855 5 183.4 -227.3 4167 4149 0 99.6% 100.0% 100.0% 99.6% 0.05 9.22 0.00 --
27677 2023:028:22:59:39.610 5 154.5 -243.9 3199 3111 4 97.2% 100.0% 100.0% 97.2% 0.04 9.20 0.00 --
25882 2023:029:06:49:50.171 5 154.5 -243.9 4418 4274 8 96.7% 99.9% 100.0% 96.7% 0.06 9.19 0.00 --
27676 2023:030:01:19:06.380 5 221.6 -191.4 2479 2380 0 96.0% 100.0% 100.0% 96.0% 0.06 9.21 0.00 --
25869 2023:031:03:51:09.143 6 132.2 -261.5 3695 3605 6 97.6% 100.0% 100.0% 97.5% 0.08 9.18 0.00 --
27685 2023:031:17:25:15.556 5 195.7 -221.7 4187 4176 3 99.7% 100.0% 100.0% 99.7% 0.11 9.17 0.00 --
25866 2023:035:08:45:28.026 5 152.9 -248.9 2871 2821 4 98.3% 99.0% 99.9% 97.2% 0.05 9.19 0.00 --
27684 2023:036:08:15:01.244 4 203.9 -210.5 2471 2458 0 99.5% 99.9% 100.0% 99.4% 0.07 9.21 0.00 --
27683 2023:036:16:44:35.798 5 204.3 -210.7 2477 2454 6 99.1% 100.0% 100.0% 99.1% 0.06 9.19 0.00 --
25880 2023:037:14:15:50.261 6 100.3 -272.3 4521 4460 5 98.7% 100.0% 100.0% 98.6% 0.08 9.20 0.00 --
27702 2023:042:15:46:34.667 5 75.4 -280.1 3693 3670 11 99.4% 99.9% 100.0% 99.3% 0.04 9.18 0.00 --
25892 2023:057:20:31:59.806 5 -146.9 -250.9 6880 6707 6 98.9% 99.9% 99.9% 98.8% 0.11 9.11 0.00 --
25889 2023:060:03:20:00.388 5 -166.4 -239.0 2484 2452 1 98.7% 100.0% 100.0% 98.7% 0.04 9.14 0.00 --
27713 2023:064:08:11:20.519 5 -191.2 -219.9 5192 5115 8 98.5% 100.0% 100.0% 98.5% 0.08 9.13 0.00 --
25872 2023:071:01:08:21.909 5 -223.9 -188.2 7842 7787 6 99.3% 100.0% 100.0% 99.3% 0.08 9.14 0.00 --
25885 2023:071:17:04:25.709 5 -223.3 -188.4 5645 5608 2 99.3% 99.9% 100.0% 99.3% 0.09 9.15 0.00 --
25868 2023:073:14:57:12.068 5 -188.4 -223.3 3886 3867 4 99.5% 100.0% 100.0% 99.5% 0.06 9.14 0.00 --
25887 2023:078:06:15:14.327 5 -243.7 -163.6 7358 7195 2 97.8% 100.0% 100.0% 97.8% 0.07 9.15 0.00 --
27744 2023:117:06:00:16.187 6 -286.3 -73.9 4793 4711 4 98.3% 100.0% 100.0% 98.3% 0.07 9.14 0.00 --
25878 2023:123:05:01:54.252 6 -290.9 -62.6 7345 7160 5 97.5% 99.2% 100.0% 96.7% 0.07 9.15 0.00 --
25881 2023:125:04:04:39.494 6 -292.3 -59.2 5475 5347 2 97.7% 99.9% 100.0% 97.6% 0.05 9.14 0.00 --
25883 2023:125:20:46:09.490 6 -291.5 -58.4 6862 6834 2 99.6% 100.0% 100.0% 99.6% 0.09 9.13 0.00 --
25876 2023:126:16:13:56.839 6 -290.5 -57.8 7839 7773 3 99.2% 100.0% 100.0% 99.1% 0.06 9.13 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.