AGASC ID 916201520

Info

Last Obs. 2022:213:07:56
magcatalog 8.04 ± 0.10
mag3 arcsec 8.11 ± 0.02
mag5 arcsec 8.11 ± 0.02
Nobs 23 (0 bad)
fok 99.3%
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
7915 2006:312:13:07:00.506 6 322.6 20.8 9878 9377 12 99.9% 100.0% 100.0% 99.9% 0.01 8.09 0.00 --
8477 2007:161:11:31:45.125 6 -275.4 52.1 23425 22915 19 99.9% 100.0% 100.0% 99.9% 0.01 8.08 0.00 --
8557 2007:165:09:24:38.389 7 -275.4 52.1 13749 13745 10 100.0% 100.0% 100.0% 100.0% 0.01 8.08 0.00 --
7712 2007:253:22:57:27.782 7 63.6 343.9 3992 3988 10 99.9% 100.0% 100.0% 99.9% 0.02 8.08 0.00 --
25916 2022:017:23:48:53.577 3 258.0 -179.9 8848 8833 8 99.8% 100.0% 100.0% 99.8% 0.03 8.12 0.00 --
26280 2022:018:23:27:03.404 3 259.2 -180.3 5918 5883 4 99.4% 100.0% 100.0% 99.4% 0.04 8.12 0.00 --
25912 2022:108:16:34:55.524 3 -319.3 -84.3 7637 7603 6 99.6% 100.0% 100.0% 99.6% 0.03 8.10 0.00 --
25911 2022:109:02:35:03.872 3 -320.9 -82.3 8372 8339 8 99.6% 100.0% 100.0% 99.6% 0.03 8.11 0.00 --
25934 2022:111:01:47:05.742 3 -322.3 -75.1 9670 9659 12 99.9% 100.0% 100.0% 99.9% 0.03 8.10 0.00 --
25931 2022:113:17:10:36.717 3 -329.8 -30.3 7236 7165 7 99.0% 100.0% 100.0% 99.0% 0.03 8.11 0.00 --
25954 2022:114:11:49:35.560 3 -330.0 -31.3 6742 6709 2 99.5% 100.0% 100.0% 99.5% 0.04 8.10 0.00 --
25928 2022:123:16:48:22.723 3 -333.2 11.5 7874 7830 6 99.4% 100.0% 100.0% 99.4% 0.04 8.13 0.00 --
25942 2022:124:03:13:33.759 3 -333.8 11.7 7537 7459 5 99.0% 100.0% 100.0% 99.0% 0.05 8.13 0.00 --
25971 2022:124:12:54:58.775 3 -334.0 11.9 6280 6210 4 98.9% 100.0% 100.0% 98.9% 0.03 8.13 0.00 --
25958 2022:124:21:54:17.761 3 -334.0 11.9 6125 6067 6 99.1% 100.0% 100.0% 99.0% 0.02 8.13 0.00 --
25932 2022:125:08:21:24.253 3 -334.0 11.9 6991 6941 6 99.3% 100.0% 100.0% 99.3% 0.03 8.13 0.00 --
25972 2022:138:02:47:22.269 3 -331.2 -6.2 15811 15594 15 98.6% 100.0% 100.0% 98.6% 0.04 8.11 0.00 --
25970 2022:163:11:12:11.837 3 -326.6 96.0 12276 12224 7 99.6% 100.0% 100.0% 99.6% 0.03 8.12 0.00 --
25919 2022:164:02:55:34.132 3 -326.0 85.8 12632 12415 12 98.3% 100.0% 100.0% 98.3% 0.03 8.12 0.00 --
25920 2022:164:15:47:33.138 3 -325.4 85.6 15203 15075 16 99.2% 100.0% 100.0% 99.2% 0.03 8.12 0.00 --
25922 2022:165:19:57:46.432 3 -327.0 86.4 15632 15572 14 99.6% 100.0% 100.0% 99.6% 0.03 8.12 0.00 --
25968 2022:193:22:27:03.186 3 -310.4 128.5 13619 13565 3 99.6% 100.0% 100.0% 99.6% 0.04 8.11 0.00 --
25967 2022:213:07:56:37.426 3 -244.9 235.2 16659 16332 8 98.0% 100.0% 100.0% 98.0% 0.05 8.11 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.