AGASC ID 966920024

Info

Last Obs. 2025:171:19:19
magcatalog 8.82 ± 0.02
mag3 arcsec 8.83 ± 0.02
mag5 arcsec 8.83 ± 0.02
Nobs 23 (0 bad)
fok 99.4%
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
2687 2002:127:01:44:28.723 5 -402.7 -194.3 10384 10324 12 99.9% 100.0% 100.0% 99.9% 0.02 8.84 0.00 --
6260 2005:121:00:13:17.807 5 299.9 450.4 5034 4902 4 98.9% 100.0% 100.0% 98.9% 0.02 8.85 0.00 --
9976 2009:217:00:53:00.695 5 -76.4 154.1 10374 10305 22 99.9% 100.0% 100.0% 99.8% 0.03 8.80 0.00 --
54475 2012:200:17:34:45.743 5 -295.5 -353.7 893 851 1 100.0% 100.0% 100.0% 100.0% 0.02 8.82 0.00 --
13790 2012:300:06:18:21.935 5 -268.2 146.4 22326 22261 25 99.9% 100.0% 100.0% 99.9% 0.03 8.81 0.00 --
13807 2012:306:18:33:06.682 7 -464.4 -449.4 44298 44137 55 99.8% 100.0% 100.0% 99.8% 0.03 8.83 0.00 --
18642 2016:142:20:23:51.344 6 408.5 -144.0 1214 1134 1 98.1% 100.0% 100.0% 98.1% 0.02 8.85 0.00 --
18644 2016:142:21:53:31.344 7 479.3 135.0 1205 1154 0 100.0% 100.0% 100.0% 100.0% 0.02 8.83 0.00 --
18646 2016:142:23:23:11.344 6 394.7 256.5 1210 1149 2 99.4% 100.0% 100.0% 99.4% 0.02 8.82 0.00 --
18649 2016:143:01:37:41.344 5 271.8 -150.4 1210 1152 0 100.0% 100.0% 100.0% 100.0% 0.03 8.84 0.00 --
24093 2021:140:15:39:40.132 7 -437.6 -42.9 2255 2113 1 95.8% 100.0% 100.0% 95.8% 0.03 8.84 0.00 --
24121 2022:103:08:42:06.225 7 -240.8 -378.9 2256 2113 3 95.7% 100.0% 100.0% 95.7% 0.03 8.86 0.00 --
24159 2022:104:03:39:59.749 7 -169.5 -361.4 2256 2179 0 98.6% 100.0% 100.0% 98.6% 0.03 8.84 0.00 --
24160 2022:104:05:00:43.082 7 -92.6 236.5 2254 2179 1 98.5% 100.0% 100.0% 98.5% 0.04 8.85 0.00 --
24227 2022:107:19:17:22.723 6 -354.6 -154.3 2255 2165 4 98.0% 100.0% 100.0% 98.0% 0.03 8.85 0.00 --
24097 2022:156:08:24:54.770 6 -198.6 421.0 2253 2164 3 99.4% 100.0% 100.0% 99.4% 0.02 8.86 0.00 --
24098 2022:199:11:52:21.357 6 335.3 -457.4 2263 2137 0 97.2% 100.0% 100.0% 97.2% 0.06 8.87 0.00 --
24084 2022:249:01:18:05.448 6 -24.7 -0.5 2257 2183 2 99.0% 100.0% 100.0% 99.0% 0.05 8.87 0.00 --
24086 2022:249:03:59:52.245 7 -13.9 408.7 2254 2128 1 96.4% 100.0% 100.0% 96.4% 0.05 8.83 0.00 --
24165 2022:277:04:39:19.752 7 310.5 -2.0 2257 2182 1 98.6% 100.0% 100.0% 98.6% 0.04 8.88 0.00 --
24166 2022:280:08:57:31.819 5 355.7 392.9 2259 2151 1 97.3% 100.0% 100.0% 97.3% 0.02 8.85 0.00 --
42337 2025:169:03:50:26.378 5 337.4 470.0 830 762 2 100.0% 100.0% 100.0% 100.0% 0.03 8.89 0.00 --
42332 2025:171:19:19:57.218 5 463.6 346.6 832 777 0 100.0% 100.0% 100.0% 100.0% 0.05 8.87 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.