AGASC ID 267139016

Info

Last Obs. 2022:247:21:06
magcatalog 9.15 ± 0.11
mag3 arcsec 9.17 ± 0.02
mag5 arcsec 9.17 ± 0.02
Nobs 16 (0 bad)
fok 98.6%
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
5005 2005:103:04:24:53.020 7 198.8 -468.7 22033 22012 26 99.9% 100.0% 100.0% 99.9% 0.03 9.19 0.00 --
7692 2007:127:12:39:13.353 6 397.0 -289.3 2569 2563 5 99.8% 100.0% 100.0% 99.7% 0.02 9.13 0.00 --
15186 2014:019:23:29:11.331 6 -384.4 -321.7 44792 44598 40 99.6% 100.0% 100.0% 99.6% 0.05 9.17 0.00 --
16564 2014:022:16:16:14.376 6 -384.4 -321.7 22375 22277 27 99.6% 100.0% 100.0% 99.6% 0.03 9.17 0.00 --
16565 2014:024:06:02:42.179 6 -384.4 -321.7 10319 10284 12 99.7% 100.0% 100.0% 99.7% 0.03 9.18 0.00 --
17169 2014:277:18:50:18.539 4 -174.0 336.5 9837 9691 10 98.5% 100.0% 100.0% 98.5% 0.03 9.15 0.00 --
52282 2014:332:01:04:20.673 6 -137.6 407.6 732 729 1 99.6% 99.9% 100.0% 99.5% 0.02 9.15 0.00 --
17168 2014:335:11:57:08.536 5 -369.6 -28.8 47789 46837 45 98.0% 100.0% 100.0% 98.0% 0.05 9.17 0.00 --
17492 2014:337:12:29:22.874 5 -369.6 -28.8 38687 37939 32 98.1% 100.0% 100.0% 98.1% 0.04 9.17 0.00 --
24489 2021:280:07:13:18.037 7 33.6 492.8 13722 13437 18 97.9% 100.0% 100.0% 97.9% 0.07 9.20 0.00 --
24490 2022:089:21:28:04.485 6 -28.2 -468.6 14507 14276 10 98.4% 100.0% 100.0% 98.4% 0.11 9.16 0.00 --
23844 2022:175:08:57:25.521 6 473.0 4.7 14491 14442 13 99.7% 100.0% 100.0% 99.7% 0.07 9.22 0.00 --
24488 2022:216:11:47:09.017 6 384.5 294.5 13749 13338 8 97.0% 100.0% 100.0% 97.0% 0.10 9.17 0.00 --
24491 2022:219:22:59:48.077 6 384.5 294.5 13728 13310 9 97.0% 100.0% 100.0% 96.9% 0.09 9.18 0.00 --
24490 2022:246:03:52:29.269 6 224.3 435.0 5840 5597 31 95.8% 99.7% 100.0% 95.6% 0.07 9.16 0.00 --
27331 2022:247:21:06:08.987 6 264.7 410.3 5088 4999 3 98.3% 100.0% 100.0% 98.3% 0.06 9.16 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.