AGASC ID 472659736

Info

Last Obs. 2024:160:17:40
magcatalog 9.53 ± 0.09
mag3 arcsec 9.39 ± 0.02
mag5 arcsec 9.39 ± 0.02
Nobs 16 (0 bad)
fok 99.0%
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
4309 2003:053:17:21:40.081 7 -266.4 488.1 637 579 0 99.7% 100.0% 100.0% 99.7% 0.06 9.38 0.00 --
5065 2004:330:14:45:29.400 7 482.6 475.4 587 534 0 100.0% 100.0% 100.0% 100.0% 0.01 9.39 0.00 --
5078 2004:330:19:50:59.400 5 382.5 378.3 588 531 0 100.0% 100.0% 100.0% 100.0% 0.03 9.36 0.00 --
8316 2007:260:21:18:33.505 7 468.7 -479.7 636 577 0 100.0% 100.0% 100.0% 100.0% 0.02 9.40 0.00 --
13065 2011:262:04:48:05.947 7 477.0 -462.8 636 579 1 100.0% 100.0% 100.0% 100.0% 0.02 9.40 0.00 --
13086 2011:262:14:10:02.195 7 479.3 -359.7 638 576 0 100.0% 100.0% 100.0% 100.0% 0.04 9.39 0.00 --
15427 2013:259:23:38:45.492 7 465.2 -485.4 637 574 0 99.5% 100.0% 100.0% 99.5% 0.05 9.37 0.00 --
15448 2013:261:07:01:52.879 7 474.9 -370.4 638 577 0 100.0% 100.0% 100.0% 100.0% 0.03 9.39 0.00 --
16415 2014:259:20:03:57.004 7 461.1 -392.5 635 576 1 99.7% 100.0% 100.0% 99.7% 0.06 9.41 0.00 --
19805 2017:255:23:19:44.776 7 480.9 -417.4 574 567 0 98.8% 100.0% 100.0% 98.8% 0.04 9.39 0.00 --
19931 2017:255:23:19:44.776 7 481.0 -417.5 639 568 0 98.8% 100.0% 100.0% 98.8% 0.04 9.39 0.00 --
19812 2017:258:13:14:29.764 7 454.5 -410.4 636 542 0 94.9% 100.0% 100.0% 94.9% 0.04 9.40 0.00 --
19833 2017:260:10:43:45.688 7 471.2 -484.6 631 575 2 99.5% 100.0% 100.0% 99.5% 0.05 9.38 0.00 --
20681 2018:261:00:37:37.315 7 473.4 -480.1 638 564 1 97.6% 100.0% 100.0% 97.6% 0.05 9.36 0.00 --
24558 2021:252:06:44:49.468 7 489.1 -484.8 634 564 3 96.4% 100.0% 100.0% 96.4% 0.04 9.40 0.00 --
25611 2023:160:17:48:58.225 7 -410.8 -494.7 335 291 0 100.0% 100.0% 100.0% 100.0% 0.06 9.37 0.00 --
28470 2024:160:17:40:25.516 6 -412.6 -493.5 332 290 0 99.7% 100.0% 100.0% 99.7% 0.09 9.37 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.