AGASC ID 300559832

Info

Last Obs. 2024:303:19:54
magcatalog 7.85 ± 0.05
mag3 arcsec 7.89 ± 0.05
mag5 arcsec 7.89 ± 0.05
Nobs 16 (0 bad)
fok 99.9%
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
6386 2005:304:09:05:50.563 6 410.0 371.5 7581 7516 7 100.0% 100.0% 100.0% 100.0% 0.01 7.85 0.00 --
7196 2005:306:07:45:50.919 6 410.0 371.5 11511 11445 8 100.0% 100.0% 100.0% 100.0% 0.01 7.85 0.00 --
7197 2005:307:01:39:33.920 6 410.0 371.5 6493 6428 6 100.0% 100.0% 100.0% 100.0% 0.01 7.85 0.00 --
7198 2005:309:07:49:28.223 6 410.0 371.5 11073 11009 4 100.0% 100.0% 100.0% 100.0% 0.01 7.86 0.00 --
7199 2005:310:01:55:56.323 6 410.0 371.5 7482 7414 5 100.0% 100.0% 100.0% 100.0% 0.01 7.86 0.00 --
6376 2006:062:20:54:10.854 5 -433.8 435.6 46047 45915 47 99.8% 100.0% 100.0% 99.8% 0.01 7.85 0.00 --
6388 2006:160:22:41:36.848 5 95.7 -457.3 48351 48216 35 99.9% 100.0% 100.0% 99.9% 0.02 7.96 0.00 --
6379 2006:247:22:03:58.292 5 454.7 -298.2 26540 26453 25 99.9% 100.0% 100.0% 99.9% 0.02 7.88 0.00 --
7402 2006:250:14:14:53.298 5 454.7 -298.2 22101 22027 20 100.0% 100.0% 100.0% 100.0% 0.01 7.89 0.00 --
23608 2020:307:11:05:53.944 4 295.8 484.8 2586 2521 4 99.8% 100.0% 100.0% 99.8% 0.01 7.86 0.00 --
23611 2021:040:07:39:09.566 6 -391.2 419.7 2579 2506 0 99.9% 100.0% 100.0% 99.9% 0.02 7.89 0.00 --
23606 2021:055:02:21:25.100 6 -368.2 482.1 2578 2497 2 99.7% 100.0% 100.0% 99.7% 0.02 7.89 0.00 --
25460 2021:307:10:31:15.678 4 182.9 -306.6 5025 4917 6 99.1% 100.0% 100.0% 99.1% 0.03 7.93 0.00 --
26084 2022:303:12:39:53.223 4 444.8 399.6 6005 5933 6 99.8% 100.0% 100.0% 99.8% 0.02 7.96 0.00 --
65519 2024:303:05:16:47.030 4 460.1 379.1 5097 5034 0 100.0% 100.0% 100.0% 100.0% 0.04 7.93 0.00 --
65519 2024:303:19:54:24.204 4 448.9 393.3 4723 4656 1 100.0% 100.0% 100.0% 100.0% 0.05 7.93 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.