AGASC ID 352981624

Info

Last Obs. 2023:287:19:55
magcatalog 8.60 ± 0.04
mag3 arcsec 8.60 ± 0.01
mag5 arcsec 8.60 ± 0.01
Nobs 24 (0 bad)
fok 99.5%
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
3808 2003:209:20:31:50.266 7 43.5 -238.6 29984 29895 24 99.9% 100.0% 100.0% 99.9% 0.02 8.60 0.00 --
17696 2015:173:13:26:09.572 4 -124.8 -218.8 19661 19475 13 99.8% 99.9% 99.9% 99.7% 0.04 8.59 0.00 --
17697 2015:174:21:15:06.000 6 -120.1 -221.1 13141 13082 12 99.9% 100.0% 100.0% 99.9% 0.03 8.58 0.00 --
17701 2015:192:12:41:22.583 4 -123.2 -219.6 19654 19492 15 99.5% 100.0% 100.0% 99.5% 0.04 8.58 0.00 --
16702 2015:196:02:56:15.580 4 -104.4 -228.1 2096 2039 1 100.0% 100.0% 100.0% 100.0% 0.02 8.58 0.00 --
16704 2015:204:08:16:05.404 4 51.2 -238.7 9694 9632 7 100.0% 100.0% 100.0% 100.0% 0.02 8.61 0.00 --
51731 2015:204:14:16:13.181 5 51.2 -238.7 149 27 0 100.0% 100.0% 100.0% 100.0% 0.00 8.60 0.00 --
17714 2015:206:17:41:00.093 4 10.9 -244.7 633 571 1 98.8% 100.0% 100.0% 98.8% 0.02 8.61 0.00 --
17704 2015:206:18:37:38.787 5 11.1 -244.7 14291 14119 19 99.2% 100.0% 100.0% 99.2% 0.03 8.61 0.00 --
18351 2015:207:02:49:28.787 6 12.9 -244.5 633 568 0 98.1% 100.0% 100.0% 98.1% 0.02 8.61 0.00 --
17711 2015:209:08:40:38.760 3 36.6 -242.7 633 575 0 99.7% 100.0% 100.0% 99.7% 0.02 8.62 0.00 --
16705 2015:209:09:33:43.740 5 36.8 -242.7 9858 9797 10 99.9% 100.0% 100.0% 99.9% 0.03 8.62 0.00 --
18348 2015:209:15:14:09.740 5 38.0 -242.5 632 575 0 99.1% 100.0% 100.0% 99.1% 0.02 8.62 0.00 --
17712 2015:213:11:45:27.121 5 58.1 -238.0 637 580 0 100.0% 100.0% 100.0% 100.0% 0.01 8.61 0.00 --
16706 2015:213:12:16:58.121 5 58.2 -238.0 14293 14227 20 99.9% 100.0% 100.0% 99.9% 0.02 8.61 0.00 --
18349 2015:213:20:28:48.121 6 60.0 -237.5 634 580 1 100.0% 100.0% 100.0% 100.0% 0.01 8.61 0.00 --
17713 2015:217:02:42:21.806 6 77.0 -232.2 634 575 0 99.1% 100.0% 100.0% 99.1% 0.02 8.61 0.00 --
16707 2015:217:03:24:56.216 6 77.2 -232.2 23182 22726 23 98.3% 100.0% 100.0% 98.3% 0.03 8.61 0.00 --
18350 2015:217:16:40:28.216 6 80.0 -231.2 635 578 0 100.0% 100.0% 100.0% 100.0% 0.03 8.60 0.00 --
17245 2015:331:03:00:41.908 4 221.0 153.1 6974 6906 8 99.9% 100.0% 100.0% 99.9% 0.03 8.59 0.00 --
23421 2021:023:19:29:54.679 3 -16.8 270.6 10881 10747 8 99.7% 100.0% 100.0% 99.6% 0.05 8.59 0.00 --
23422 2021:037:18:40:27.494 5 -98.4 254.1 10876 10710 15 99.2% 100.0% 100.0% 99.2% 0.04 8.60 0.00 --
23423 2021:052:10:11:25.384 6 -170.2 214.6 10877 10624 17 98.4% 100.0% 100.0% 98.4% 0.04 8.60 0.00 --
28927 2023:287:19:55:34.061 5 245.5 24.6 3757 3692 1 100.0% 100.0% 100.0% 100.0% 0.06 8.63 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.