AGASC ID 367670520

Info

Last Obs. 2024:311:02:38
magcatalog 9.25 ± 0.02
mag3 arcsec 9.26 ± 0.02
mag5 arcsec 9.26 ± 0.02
Nobs 13 (0 bad)
fok 99.3%
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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
2909 2002:016:05:07:44.574 6 358.0 340.3 581 534 0 99.8% 100.0% 100.0% 99.8% 0.02 9.26 0.00 --
2914 2002:153:22:18:04.714 6 -398.4 69.2 627 584 0 100.0% 100.0% 100.0% 100.0% 0.02 9.26 0.00 --
3813 2003:253:02:24:19.452 7 -350.7 -379.3 2569 2467 0 100.0% 100.0% 100.0% 100.0% 0.02 9.27 0.00 --
4541 2004:330:22:11:59.400 6 438.2 -204.0 13024 12951 11 99.9% 100.0% 100.0% 99.9% 0.03 9.28 0.00 --
6167 2004:331:12:00:48.161 6 438.2 -204.0 12101 12034 11 99.9% 100.0% 100.0% 99.9% 0.04 9.28 0.00 --
17637 2015:065:16:12:00.841 6 213.5 326.1 5025 4889 6 98.7% 100.0% 100.0% 98.7% 0.02 9.25 0.00 --
17011 2015:281:19:54:10.457 7 -37.4 -457.7 24918 24287 34 98.0% 100.0% 100.0% 98.0% 0.05 9.24 0.00 --
17014 2015:282:10:16:07.442 6 -183.4 -141.8 24534 24355 34 99.5% 100.0% 100.0% 99.5% 0.03 9.25 0.00 --
17012 2015:284:19:39:47.753 6 126.0 -330.0 24050 23911 22 99.7% 100.0% 100.0% 99.6% 0.06 9.28 0.00 --
17013 2015:290:19:24:54.049 6 -50.7 -314.6 22238 21995 36 99.2% 100.0% 100.0% 99.2% 0.05 9.24 0.00 --
17009 2015:299:05:00:35.981 6 428.8 -381.5 24528 24359 25 99.6% 100.0% 100.0% 99.6% 0.04 9.28 0.00 --
51542 2015:299:19:31:04.765 6 428.8 -381.5 95 48 0 100.0% 100.0% 100.0% 100.0% 0.01 9.27 0.00 --
30557 2024:311:02:38:27.313 6 463.9 -357.4 5455 5376 1 99.9% 99.7% 100.0% 99.6% 0.14 9.30 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.