AGASC ID 551289544

Info

Last Obs. 2023:251:23:53
magcatalog 9.28 ± 0.16
mag3 arcsec 9.31 ± 0.03
mag5 arcsec 9.31 ± 0.03
Nobs 28 (0 bad)
fok 98.2%
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
59550 2005:196:15:39:59.124 0 -219.2 -454.7 1800 1753 2 99.8% 99.9% 99.9% 99.8% 0.04 9.31 0.00 --
20358 2018:212:16:51:47.192 3 -92.5 265.4 23255 22461 17 96.9% 100.0% 100.0% 96.9% 0.07 9.26 0.00 --
20359 2018:278:22:27:54.893 3 -281.5 42.6 23797 23689 22 99.8% 100.0% 100.0% 99.7% 0.11 9.27 0.00 --
21959 2018:344:21:14:13.836 3 -85.3 -239.6 13612 13019 17 96.2% 100.0% 100.0% 96.2% 0.09 9.28 0.00 --
20360 2018:348:00:39:42.528 3 -85.2 -239.7 10880 10521 14 97.6% 100.0% 100.0% 97.6% 0.07 9.29 0.00 --
65528 2020:238:06:42:57.286 3 -223.1 195.1 23560 23056 23 98.1% 100.0% 100.0% 98.1% 0.16 9.30 0.00 --
21651 2020:265:08:04:54.370 3 -273.6 103.3 9898 9563 18 97.3% 100.0% 100.0% 97.3% 0.05 9.30 0.00 --
21651 2020:265:08:04:54.370 3 -273.5 103.1 9832 9562 18 97.3% 100.0% 100.0% 97.3% 0.05 9.30 0.00 --
24655 2020:265:19:45:32.327 3 -273.3 103.1 6971 6668 17 96.6% 100.0% 100.0% 96.6% 0.05 9.30 0.00 --
24656 2020:266:09:09:33.203 3 -273.8 103.4 7124 6925 8 97.9% 100.0% 100.0% 97.8% 0.05 9.31 0.00 --
23015 2021:086:11:21:04.238 3 257.2 -37.1 24542 24076 22 98.5% 100.0% 100.0% 98.5% 0.10 9.33 0.00 --
22518 2021:165:00:43:39.853 3 85.4 264.5 8234 8070 8 99.1% 100.0% 100.0% 99.1% 0.05 9.29 0.00 --
25062 2021:165:16:40:04.880 3 85.0 264.7 26003 25650 15 98.9% 100.0% 100.0% 98.9% 0.12 9.30 0.00 --
22519 2021:168:08:13:29.789 3 84.3 265.0 11369 11049 16 97.8% 100.0% 100.0% 97.8% 0.07 9.30 0.00 --
24933 2021:179:14:21:18.959 3 40.7 276.3 19660 18988 13 97.0% 100.0% 100.0% 96.9% 0.12 9.31 0.00 --
24258 2021:243:05:07:52.857 3 -191.5 204.3 9412 9222 13 98.8% 100.0% 100.0% 98.7% 0.06 9.29 0.00 --
24515 2021:348:11:03:02.442 3 -120.0 -230.8 13803 13507 10 98.3% 100.0% 100.0% 98.2% 0.10 9.31 0.00 --
25975 2022:075:19:10:41.734 6 235.3 -105.1 18929 18381 18 97.4% 100.0% 100.0% 97.4% 0.14 9.35 0.00 --
25976 2022:160:12:09:54.642 6 101.8 257.9 27967 27735 6 99.4% 100.0% 100.0% 99.4% 0.16 9.33 0.00 --
23878 2022:238:19:10:07.497 7 -197.7 198.9 14630 14427 3 99.1% 100.0% 100.0% 99.1% 0.11 9.32 0.00 --
25979 2022:255:15:03:17.276 6 -243.2 137.7 14778 14335 13 97.5% 100.0% 100.0% 97.5% 0.07 9.33 0.00 --
25978 2022:262:03:56:38.949 6 -257.1 111.3 10971 10742 14 98.4% 100.0% 100.0% 98.4% 0.05 9.33 0.00 --
27451 2022:268:19:55:18.812 6 -265.4 81.5 4677 4491 5 97.4% 100.0% 100.0% 97.4% 0.05 9.33 0.00 --
25980 2022:337:19:51:06.784 6 -169.0 -201.7 3993 3850 5 97.7% 99.9% 100.0% 97.6% 0.09 9.32 0.00 --
27576 2022:338:06:27:19.499 6 -168.9 -201.8 3754 3612 1 97.6% 100.0% 100.0% 97.5% 0.10 9.32 0.00 --
27764 2023:076:21:25:07.088 6 243.6 -82.5 8728 8454 7 97.5% 100.0% 100.0% 97.5% 0.11 9.34 0.00 --
27878 2023:168:19:21:43.962 6 90.7 262.0 5730 5657 6 99.9% 99.9% 100.0% 99.9% 0.08 9.30 0.00 --
28881 2023:251:12:20:08.498 6 -226.6 165.4 4723 4655 2 99.9% 100.0% 100.0% 99.9% 0.08 9.30 0.00 --
28882 2023:251:23:53:34.077 7 -221.5 173.2 1227 1168 3 99.7% 100.0% 100.0% 99.7% 0.10 9.33 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.