AGASC ID 168306608

Info

Last Obs. 2025:060:17:03
magcatalog 9.65 ± 0.02
mag3 arcsec 9.68 ± 0.04
mag5 arcsec 9.68 ± 0.04
Nobs 24 (0 bad)
fok 98.8%
f3 arcsec 95.7%
f5 arcsec 99.5%

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
26464 2022:213:06:50:46.124 7 -305.9 -374.3 908 791 1 98.5% 100.0% 100.0% 98.5% 0.05 9.63 0.00 --
26467 2022:216:10:40:08.375 7 -309.0 -372.0 873 765 2 97.5% 99.3% 99.5% 96.8% 0.10 9.63 0.00 --
29680 2025:028:19:16:28.723 6 331.4 367.8 469 397 1 100.0% 100.0% 100.0% 100.0% 0.04 9.72 0.00 --
29681 2025:029:13:25:30.119 5 295.5 399.1 467 398 0 99.7% 99.2% 100.0% 99.0% 0.10 9.73 0.00 --
29682 2025:029:21:10:33.939 5 296.2 398.7 521 396 0 100.0% 99.2% 99.7% 99.2% 0.11 9.70 0.00 --
29684 2025:030:13:05:28.786 7 363.0 336.1 458 393 0 98.0% 92.4% 99.7% 90.5% 0.08 9.62 0.00 --
29685 2025:031:00:58:28.416 5 297.6 397.7 469 403 0 100.0% 93.3% 100.0% 93.3% 0.09 9.71 0.00 --
29686 2025:031:08:45:40.050 6 308.2 389.4 462 411 0 100.0% 99.5% 100.0% 99.5% 0.11 9.66 0.00 --
29687 2025:031:14:11:48.272 6 308.5 389.2 466 396 1 100.0% 93.7% 99.7% 93.7% 0.11 9.64 0.00 --
29718 2025:038:19:44:14.199 5 304.1 392.6 465 410 3 100.0% 98.3% 100.0% 98.3% 0.10 9.68 0.00 --
29719 2025:039:04:17:16.496 5 304.0 392.5 466 404 0 99.8% 99.8% 100.0% 99.5% 0.08 9.70 0.00 --
29720 2025:039:12:52:47.503 5 304.1 392.3 472 410 1 100.0% 96.3% 100.0% 96.3% 0.10 9.66 0.00 --
29721 2025:040:02:02:13.061 5 304.2 392.2 464 400 1 99.8% 99.5% 100.0% 99.3% 0.06 9.67 0.00 --
29722 2025:040:10:25:11.230 5 303.9 392.3 466 409 3 100.0% 97.3% 100.0% 97.3% 0.05 9.66 0.00 --
29723 2025:040:18:59:52.473 7 304.0 392.1 460 409 1 99.8% 100.0% 100.0% 99.8% 0.08 9.71 0.00 --
29693 2025:045:07:15:32.574 6 307.8 389.2 467 399 0 99.3% 99.5% 100.0% 98.8% 0.06 9.69 0.00 --
29694 2025:045:15:52:13.312 7 362.1 336.5 502 403 2 100.0% 82.1% 100.0% 82.1% 0.07 9.72 0.00 --
29695 2025:046:00:35:24.304 7 308.5 388.7 470 405 6 98.1% 87.7% 93.6% 86.0% 0.17 9.65 0.00 --
29696 2025:046:09:31:39.884 7 362.5 336.3 452 401 0 99.8% 87.5% 99.8% 87.3% 0.13 9.68 0.00 --
29697 2025:046:19:10:13.055 7 362.6 336.3 449 411 0 99.8% 95.1% 100.0% 94.9% 0.09 9.70 0.00 --
29698 2025:047:03:49:12.610 7 362.1 336.5 465 408 7 98.3% 82.6% 94.4% 81.2% 0.10 9.72 0.00 --
29699 2025:047:11:25:36.259 7 309.7 387.8 474 424 1 100.0% 91.5% 100.0% 91.5% 0.09 9.65 0.00 --
29704 2025:060:10:59:07.705 7 318.3 380.6 505 401 0 99.8% 96.0% 100.0% 95.8% 0.11 9.69 0.00 --
29705 2025:060:17:03:03.529 7 318.9 380.3 493 406 0 100.0% 100.0% 100.0% 100.0% 0.07 9.70 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.