AGASC ID 685257144

Info

Last Obs. 2024:231:13:39
magcatalog 9.14 ± 0.02
mag3 arcsec 9.16 ± 0.03
mag5 arcsec 9.16 ± 0.03
Nobs 20 (0 bad)
fok 98.9%
f3 arcsec 99.7%
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
9285 2007:336:01:08:12.708 6 -382.3 -337.1 5016 4949 10 99.9% 100.0% 100.0% 99.9% 0.02 9.15 0.00 --
15039 2013:210:09:19:36.680 7 288.5 429.8 27546 26993 27 98.2% 100.0% 100.0% 98.2% 0.03 9.16 0.00 --
20778 2018:204:00:00:12.903 6 201.3 289.1 18684 18354 36 98.5% 100.0% 100.0% 98.5% 0.04 9.14 0.00 --
21131 2018:206:15:15:57.103 6 202.5 288.5 15751 15358 21 97.8% 100.0% 100.0% 97.8% 0.04 9.13 0.00 --
21132 2018:207:13:56:17.524 6 204.4 287.6 17721 17223 16 97.6% 100.0% 100.0% 97.6% 0.04 9.12 0.00 --
21133 2018:208:08:48:05.726 6 204.6 287.5 12587 12194 24 97.3% 100.0% 100.0% 97.3% 0.05 9.13 0.00 --
21134 2018:210:10:22:46.675 6 204.8 287.4 8438 8248 13 98.7% 99.9% 100.0% 98.6% 0.04 9.12 0.00 --
46126 2021:236:18:19:59.730 2 -341.2 262.1 1432 1328 7 96.3% 98.8% 99.8% 95.1% 0.04 9.15 0.00 --
28722 2024:147:17:24:42.609 7 260.9 259.0 6188 6122 0 99.9% 100.0% 100.0% 99.9% 0.09 9.19 0.00 --
28721 2024:153:23:09:20.601 7 251.6 268.4 6190 6127 6 100.0% 98.2% 100.0% 98.2% 0.16 9.20 0.00 --
28701 2024:168:22:21:26.235 7 266.8 252.3 5044 4973 1 99.9% 99.9% 100.0% 99.8% 0.13 9.20 0.00 --
28702 2024:169:09:00:59.816 7 266.8 252.4 8391 8319 5 99.9% 99.8% 100.0% 99.7% 0.12 9.20 0.00 --
28703 2024:170:15:45:05.290 7 266.6 253.1 8263 8199 3 100.0% 99.1% 100.0% 99.1% 0.22 9.20 0.00 --
28704 2024:171:21:36:35.946 7 265.3 254.0 8386 8315 2 99.9% 99.5% 100.0% 99.4% 0.19 9.19 0.00 --
28720 2024:174:13:40:09.684 7 263.8 255.6 9605 9545 4 99.9% 100.0% 100.0% 99.9% 0.11 9.19 0.00 --
28719 2024:217:13:22:02.486 6 133.0 347.7 6644 6582 2 99.9% 98.3% 100.0% 98.3% 0.12 9.17 0.00 --
28715 2024:225:12:27:50.179 6 172.3 328.9 6178 6115 2 99.9% 98.4% 100.0% 98.4% 0.15 9.18 0.00 --
29506 2024:226:06:13:35.214 6 164.0 333.2 7650 7581 4 99.8% 100.0% 100.0% 99.8% 0.09 9.19 0.00 --
28337 2024:227:10:47:51.908 7 233.9 285.3 4507 4429 1 99.9% 99.8% 100.0% 99.6% 0.12 9.19 0.00 --
29505 2024:231:13:39:08.333 7 34.8 372.6 6213 6086 6 99.9% 99.4% 100.0% 99.3% 0.11 9.18 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.