AGASC ID 551289544

Info

Last Obs. 2023:168:19:21
magcatalog 9.28 ± 0.16
mag3 arcsec 9.31 ± 0.03
mag5 arcsec 9.31 ± 0.03
Nobs 26 (0 bad)
fok 98.1%
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 -219.1 -454.6 1756 1753 2 99.8% 99.9% 99.9% 99.8% 0.04 9.31 0.00 --
20358 2018:212:16:51:47.192 3 -92.3 265.3 23191 22461 17 96.9% 100.0% 100.0% 96.9% 0.07 9.26 0.00 --
20359 2018:278:22:27:54.893 3 -281.4 42.5 23743 23688 22 99.8% 100.0% 100.0% 99.7% 0.11 9.27 0.00 --
21959 2018:344:21:14:13.836 3 -85.2 -239.6 13528 13019 17 96.2% 100.0% 100.0% 96.2% 0.09 9.28 0.00 --
20360 2018:348:00:39:42.528 3 -85.0 -239.6 10778 10521 14 97.6% 100.0% 100.0% 97.6% 0.07 9.29 0.00 --
21651 2020:238:06:42:57.286 3 -223.0 194.9 23506 23056 23 98.1% 100.0% 100.0% 98.1% 0.16 9.30 0.00 --
21651 2020:265:08:04:54.370 3 -273.5 103.1 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 -273.1 102.9 6903 6668 17 96.6% 100.0% 100.0% 96.6% 0.05 9.30 0.00 --
24656 2020:266:09:09:33.203 3 -273.7 103.3 7077 6925 8 97.9% 100.0% 100.0% 97.8% 0.05 9.31 0.00 --
23015 2021:086:11:21:04.238 3 257.1 -37.0 24447 24076 22 98.5% 100.0% 100.0% 98.5% 0.10 9.33 0.00 --
22518 2021:165:00:43:39.853 3 85.2 264.3 8142 8069 8 99.1% 100.0% 100.0% 99.1% 0.05 9.29 0.00 --
25062 2021:165:16:40:04.880 3 85.0 264.5 25937 25650 15 98.9% 100.0% 100.0% 98.9% 0.12 9.30 0.00 --
22519 2021:168:08:13:29.789 3 84.2 264.9 11296 11048 16 97.8% 100.0% 100.0% 97.8% 0.07 9.30 0.00 --
24933 2021:179:14:21:18.959 3 40.5 276.2 19583 18988 13 97.0% 100.0% 100.0% 96.9% 0.12 9.31 0.00 --
24258 2021:243:05:07:52.857 3 -191.4 204.3 9335 9221 13 98.8% 100.0% 100.0% 98.7% 0.06 9.29 0.00 --
24515 2021:348:11:03:02.442 3 -119.9 -230.7 13746 13506 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 -104.9 18868 18381 18 97.4% 100.0% 100.0% 97.4% 0.14 9.35 0.00 --
25976 2022:160:12:09:54.642 6 101.6 257.9 27900 27735 6 99.4% 100.0% 100.0% 99.4% 0.16 9.33 0.00 --
23878 2022:238:19:10:07.497 7 -197.6 198.8 14551 14427 3 99.1% 100.0% 100.0% 99.1% 0.11 9.32 0.00 --
25979 2022:255:15:03:17.276 6 -243.1 137.5 14700 14334 13 97.5% 100.0% 100.0% 97.5% 0.07 9.33 0.00 --
25978 2022:262:03:56:38.949 6 -257.0 111.1 10917 10742 14 98.4% 100.0% 100.0% 98.4% 0.05 9.33 0.00 --
27451 2022:268:19:55:18.812 6 -265.3 81.4 4609 4490 5 97.4% 100.0% 100.0% 97.4% 0.05 9.33 0.00 --
25980 2022:337:19:51:06.784 6 -168.9 -201.6 3941 3849 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 -201.6 3702 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 -82.3 8671 8454 7 97.5% 100.0% 100.0% 97.5% 0.11 9.34 0.00 --
27878 2023:168:19:21:43.962 6 90.6 261.9 5661 5657 6 99.9% 99.9% 100.0% 99.9% 0.08 9.32 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.