AGASC ID 966791896

Info

Last Obs. 2022:205:21:24
magcatalog 8.45 ± 0.30
mag3 arcsec 8.24 ± 0.02
mag5 arcsec 8.24 ± 0.02
Nobs 17 (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 mag100s ⟨ mag ⟩ σmag Comments
8158 2007:299:05:22:50.518 5 27.0 442.0 1449 1444 2 99.7% 100.0% 100.0% 99.7% 0.02 8.23 0.00 --
20286 2018:088:14:49:38.039 3 -351.8 -16.8 1772 1767 3 99.8% 99.9% 100.0% 99.7% 0.02 8.24 0.00 --
24966 2021:048:14:17:21.935 4 -440.7 -441.0 12278 12240 11 99.7% 100.0% 100.0% 99.7% 0.03 8.23 0.00 --
24092 2021:140:14:16:08.595 7 348.6 -476.4 2210 2207 0 99.9% 100.0% 100.0% 99.9% 0.03 8.23 0.00 --
24094 2021:140:17:00:30.193 6 483.7 -84.9 2210 2195 2 99.3% 100.0% 100.0% 99.3% 0.02 8.23 0.00 --
24095 2021:140:18:21:13.526 7 416.8 -279.8 2208 2193 1 99.4% 100.0% 100.0% 99.4% 0.03 8.23 0.00 --
24232 2022:077:20:13:43.495 4 -28.4 384.3 2189 2183 3 99.7% 100.0% 100.0% 99.7% 0.02 8.23 0.00 --
24172 2022:095:19:57:17.494 4 375.5 228.5 2207 2196 5 99.5% 100.0% 100.0% 99.5% 0.02 8.22 0.00 --
24173 2022:095:21:18:11.524 3 355.7 29.6 2211 2195 4 99.3% 100.0% 100.0% 99.3% 0.03 8.22 0.00 --
24125 2022:103:14:04:59.557 4 109.2 243.4 2208 2202 3 99.7% 100.0% 100.0% 99.7% 0.03 8.25 0.00 --
24229 2022:121:03:35:42.993 7 486.7 -457.6 2211 2207 3 99.8% 100.0% 100.0% 99.8% 0.02 8.24 0.00 --
24233 2022:121:18:38:26.492 4 278.8 -409.2 2209 2182 4 98.8% 100.0% 100.0% 98.7% 0.02 8.24 0.00 --
24180 2022:156:00:27:46.965 3 182.1 -326.4 2512 2439 4 97.1% 100.0% 100.0% 97.1% 0.02 8.25 0.00 --
24181 2022:156:22:57:05.164 4 319.6 488.1 2170 2165 4 99.8% 100.0% 100.0% 99.8% 0.02 8.24 0.00 --
24099 2022:199:13:47:03.237 3 -259.1 -185.4 2205 2164 2 98.2% 100.0% 100.0% 98.2% 0.02 8.27 0.00 --
24101 2022:203:11:44:50.852 3 -328.1 222.0 2178 2158 4 99.1% 100.0% 100.0% 99.1% 0.02 8.26 0.00 --
24100 2022:205:21:24:14.917 3 -296.8 24.3 2209 2194 1 99.4% 100.0% 100.0% 99.4% 0.03 8.26 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.