AGASC ID 818807632

Info

Last Obs. 2022:197:11:09
magcatalog 9.46 ± 0.11
mag3 arcsec 9.46 ± 0.05
mag5 arcsec 9.46 ± 0.05
Nobs 19 (0 bad)
fok 98.0%
f3 arcsec 99.6%
f5 arcsec 99.9%

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
4583 2004:132:05:42:35.213 3 -358.2 430.2 20240 20160 25 99.6% 100.0% 100.0% 99.6% 0.03 9.41 0.00 --
4650 2004:300:04:00:35.323 3 -16.9 158.6 23707 23199 32 99.8% 100.0% 100.0% 99.8% 0.03 9.38 0.00 --
54879 2012:034:05:16:03.209 0 -333.1 107.7 601 594 3 98.8% 100.0% 100.0% 98.8% 0.03 9.39 0.00 --
50834 2016:204:12:37:23.529 1 -19.3 155.6 53 51 1 98.1% 100.0% 100.0% 98.1% 0.01 9.43 0.00 --
23535 2021:137:23:28:09.110 3 12.4 -128.5 7402 7187 7 97.1% 100.0% 100.0% 97.1% 0.06 9.48 0.00 --
25044 2021:138:12:48:15.736 3 12.4 -128.5 10398 10190 13 98.0% 100.0% 100.0% 98.0% 0.07 9.47 0.00 --
24255 2021:174:19:24:31.544 4 1.6 155.4 12260 12045 17 98.2% 100.0% 100.0% 98.2% 0.07 9.47 0.00 --
25074 2021:177:18:51:09.624 4 1.8 155.2 13726 13500 15 98.4% 100.0% 100.0% 98.3% 0.11 9.51 0.00 --
24248 2022:032:07:42:54.456 6 -8.6 -130.9 8361 8102 5 96.9% 100.0% 100.0% 96.9% 0.09 9.42 0.00 --
26293 2022:032:19:04:52.243 6 -10.2 -130.5 6408 6275 12 97.9% 100.0% 100.0% 97.9% 0.07 9.44 0.00 --
24252 2022:087:06:45:34.085 7 7.8 -130.1 12339 11831 22 96.6% 99.7% 99.7% 96.3% 0.09 9.50 0.00 --
24247 2022:101:12:28:02.197 7 8.8 -129.7 8086 7947 10 98.3% 100.0% 100.0% 98.2% 0.09 9.50 0.00 --
26389 2022:102:17:41:33.849 7 6.6 -128.7 5077 4867 7 95.9% 99.9% 99.9% 95.8% 0.06 9.51 0.00 --
24250 2022:127:18:51:48.210 7 14.0 -130.1 14647 14167 239 96.7% 95.7% 99.3% 92.5% 0.17 9.52 0.00 --
24243 2022:141:02:38:53.110 6 6.4 -130.1 12537 12188 17 97.2% 100.0% 100.0% 97.2% 0.10 9.52 0.00 --
24245 2022:160:07:00:29.439 6 87.4 -91.9 7823 7681 9 98.2% 100.0% 100.0% 98.2% 0.08 9.51 0.00 --
26385 2022:161:04:38:20.823 6 88.8 -92.7 7797 7601 6 97.5% 100.0% 100.0% 97.5% 0.09 9.50 0.00 --
24249 2022:180:18:47:55.462 6 -6.5 153.6 12375 12265 14 99.1% 99.8% 100.0% 98.9% 0.11 9.43 0.00 --
24246 2022:197:11:09:03.183 6 -48.9 147.8 13731 13371 5 97.4% 99.8% 100.0% 97.2% 0.16 9.39 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.