AGASC ID 896534744

Info

Last Obs. 2022:205:08:49
magcatalog 8.65 ± 0.58
mag3 arcsec 8.09 ± 0.01
mag5 arcsec 8.09 ± 0.01
Nobs 20 (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
21595 2019:183:21:29:17.866 7 452.9 -313.2 1068 1049 1 98.2% 100.0% 100.0% 98.2% 0.02 8.09 0.00 --
23885 2021:182:16:13:45.022 6 -87.9 373.0 2671 2648 3 99.1% 100.0% 100.0% 99.1% 0.03 8.09 0.00 --
23886 2021:182:17:52:20.536 6 -240.1 336.3 2670 2652 4 99.4% 100.0% 100.0% 99.4% 0.03 8.09 0.00 --
24189 2022:071:11:48:03.575 5 272.0 406.7 2208 2203 9 99.8% 100.0% 100.0% 99.8% 0.02 8.08 0.00 --
24190 2022:071:13:09:17.654 6 230.4 211.4 2208 2207 2 100.0% 100.0% 100.0% 100.0% 0.02 8.08 0.00 --
24191 2022:071:14:30:00.987 6 187.7 13.8 2205 2197 3 99.6% 100.0% 100.0% 99.6% 0.03 8.09 0.00 --
24198 2022:076:12:27:36.770 7 404.4 251.8 2201 2174 1 98.8% 100.0% 100.0% 98.8% 0.02 8.07 0.00 --
24132 2022:103:15:26:29.283 4 302.7 404.2 2209 2198 6 99.5% 100.0% 100.0% 99.5% 0.02 8.08 0.00 --
24133 2022:103:16:50:44.093 5 284.9 204.8 2206 2197 2 99.6% 100.0% 100.0% 99.6% 0.02 8.08 0.00 --
24134 2022:103:18:11:27.426 6 163.4 6.5 2206 2206 2 100.0% 100.0% 100.0% 100.0% 0.03 8.10 0.00 --
24222 2022:104:07:42:09.748 7 12.7 238.7 2213 2194 5 99.1% 100.0% 100.0% 99.1% 0.03 8.08 0.00 --
24223 2022:106:20:40:26.931 5 378.7 -175.2 2309 2293 1 99.3% 100.0% 100.0% 99.3% 0.05 8.09 0.00 --
24055 2022:111:07:47:56.722 7 486.5 153.3 2183 2179 3 99.8% 100.0% 100.0% 99.8% 0.03 8.08 0.00 --
24061 2022:145:16:34:28.943 7 83.8 409.7 2203 2189 4 99.4% 100.0% 100.0% 99.4% 0.02 8.09 0.00 --
24138 2022:155:00:26:18.462 5 249.1 -326.0 2174 2154 1 99.1% 100.0% 100.0% 99.1% 0.02 8.10 0.00 --
26302 2022:162:06:24:17.947 7 -434.7 350.7 9504 9378 11 98.7% 100.0% 100.0% 98.6% 0.03 8.10 0.00 --
24066 2022:166:14:03:39.456 5 184.5 -305.9 2179 2152 0 98.8% 100.0% 100.0% 98.8% 0.03 8.10 0.00 --
24067 2022:166:15:55:39.769 5 320.4 365.9 2208 2207 1 100.0% 100.0% 100.0% 100.0% 0.01 8.09 0.00 --
24195 2022:181:14:35:14.248 5 -385.7 -103.6 2417 2405 0 99.5% 100.0% 100.0% 99.5% 0.03 8.10 0.00 --
24218 2022:205:08:49:30.792 5 33.0 -415.0 2174 2147 3 98.8% 100.0% 100.0% 98.8% 0.03 8.09 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.