AGASC ID 118624864

Info

Last Obs. 2022:243:07:39
magcatalog 7.24 ± 0.10
mag3 arcsec 7.23 ± 0.01
mag5 arcsec 7.23 ± 0.01
Nobs 12 (0 bad)
fok 100.0%
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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
3968 2003:243:09:54:58.479 4 384.3 125.3 24435 24433 13 100.0% 100.0% 100.0% 100.0% 0.01 7.22 0.00 --
5645 2005:089:01:19:03.038 4 258.8 -214.3 44222 44210 23 100.0% 100.0% 100.0% 100.0% 0.01 7.23 0.00 --
59697 2005:107:02:38:27.507 0 -429.4 416.7 5118 5114 14 99.9% 100.0% 100.0% 99.9% 0.01 7.24 0.00 --
6700 2006:233:00:12:24.731 3 -209.3 -336.5 871 870 1 99.9% 100.0% 100.0% 99.9% 0.01 7.23 0.00 --
56335 2010:103:01:51:29.475 6 -480.8 50.4 2277 2276 2 100.0% 100.0% 100.0% 100.0% 0.01 7.24 0.00 --
56331 2010:105:16:59:40.042 6 -309.9 311.0 2191 2191 2 100.0% 100.0% 100.0% 100.0% 0.01 7.22 0.00 --
14960 2013:092:03:56:00.781 4 270.5 -189.2 19099 19090 10 100.0% 100.0% 100.0% 100.0% 0.02 7.23 0.00 --
51113 2016:101:09:22:26.135 0 -349.5 -202.8 3199 3199 5 100.0% 100.0% 100.0% 100.0% 0.01 7.23 0.00 --
51108 2016:101:22:18:22.200 0 -344.5 -211.1 467 465 0 99.8% 100.0% 100.0% 99.8% 0.01 7.23 0.00 --
24334 2022:150:08:02:50.293 3 177.9 303.0 14757 14753 6 100.0% 100.0% 100.0% 100.0% 0.02 7.23 0.00 --
23804 2022:242:09:46:50.746 3 -144.8 328.9 9843 9841 6 100.0% 100.0% 100.0% 100.0% 0.02 7.24 0.00 --
27329 2022:243:07:39:56.017 3 -144.6 328.9 4943 4943 1 100.0% 100.0% 100.0% 100.0% 0.02 7.23 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.