AGASC ID 966923376

Info

Last Obs. 2022:172:00:17
magcatalog 8.74 ± 0.15
mag3 arcsec 8.73 ± 0.02
mag5 arcsec 8.73 ± 0.02
Nobs 20 (0 bad)
fok 98.6%
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
8758 2008:134:09:27:33.074 6 351.6 321.5 1066 1066 1 100.0% 100.0% 100.0% 100.0% 0.02 8.72 0.00 --
8763 2008:134:12:56:43.074 7 -437.1 15.5 1064 1063 1 99.9% 100.0% 100.0% 99.9% 0.01 8.72 0.00 --
8770 2008:134:16:25:53.074 6 62.6 365.0 1066 1066 1 100.0% 100.0% 100.0% 100.0% 0.02 8.72 0.00 --
8769 2008:134:17:07:43.074 7 221.1 426.0 1065 1064 0 100.0% 100.0% 100.0% 100.0% 0.02 8.73 0.00 --
8768 2008:134:17:49:33.074 6 380.9 487.9 1066 1066 0 100.0% 100.0% 100.0% 100.0% 0.01 8.73 0.00 --
8752 2008:136:16:55:54.213 3 -463.5 -151.3 1055 1055 0 100.0% 100.0% 100.0% 100.0% 0.02 8.72 0.00 --
13571 2011:305:18:17:29.101 3 355.9 -480.3 1154 1154 0 100.0% 100.0% 100.0% 100.0% 0.01 8.72 0.00 --
13547 2011:305:19:47:09.415 6 67.4 -441.9 1154 1150 4 99.7% 100.0% 100.0% 99.7% 0.02 8.74 0.00 --
23949 2022:046:15:02:59.019 7 -131.9 37.4 2641 2564 2 97.1% 100.0% 100.0% 97.1% 0.07 8.71 0.00 --
24168 2022:095:14:02:28.228 7 124.5 -101.6 2186 2164 1 99.0% 100.0% 100.0% 99.0% 0.04 8.78 0.00 --
24122 2022:103:10:02:49.558 7 231.0 -325.1 2209 2159 4 97.7% 100.0% 100.0% 97.7% 0.03 8.74 0.00 --
23964 2022:137:22:56:58.287 7 103.6 108.3 2635 2536 5 96.2% 99.9% 99.9% 96.2% 0.03 8.72 0.00 --
23966 2022:138:12:18:08.678 6 -222.6 377.0 2645 2591 4 98.0% 100.0% 100.0% 98.0% 0.03 8.73 0.00 --
23967 2022:138:14:19:22.097 6 -275.0 196.5 2670 2654 1 99.4% 100.0% 100.0% 99.4% 0.02 8.74 0.00 --
23968 2022:141:00:26:31.878 7 -320.8 -72.7 2640 2620 4 99.2% 100.0% 100.0% 99.2% 0.02 8.73 0.00 --
23949 2022:153:04:03:52.248 7 -111.2 84.4 2662 2633 3 98.9% 100.0% 100.0% 98.9% 0.04 8.73 0.00 --
24096 2022:153:19:20:23.838 7 -197.8 -435.4 2208 2160 3 97.8% 100.0% 100.0% 97.8% 0.03 8.71 0.00 --
24097 2022:156:08:24:54.770 7 -110.2 -251.3 2176 2155 2 99.0% 100.0% 100.0% 99.0% 0.03 8.73 0.00 --
23969 2022:171:22:39:36.290 6 455.3 406.6 2670 2596 0 97.2% 100.0% 100.0% 97.2% 0.03 8.72 0.00 --
23970 2022:172:00:17:17.361 6 286.3 449.6 2667 2650 3 99.4% 100.0% 100.0% 99.4% 0.02 8.73 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.