AGASC ID 194257752

Info

Last Obs. 2026:009:22:38
magcatalog 6.10 ± 0.02
mag3 arcsec 6.09 ± 0.01
mag5 arcsec 6.09 ± 0.01
Nobs 16 (0 bad)
fok 100.0%
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
26316 2022:052:03:03:00.232 3 472.8 -468.9 2100 2023 1 100.0% 100.0% 100.0% 100.0% 0.02 6.09 0.00 --
26317 2022:054:01:00:10.511 3 471.6 -468.3 2100 2044 1 100.0% 100.0% 100.0% 100.0% 0.01 6.09 0.00 --
26318 2022:056:03:34:45.487 3 471.7 -468.4 2100 2038 1 100.0% 100.0% 100.0% 100.0% 0.01 6.09 0.00 --
26319 2022:058:07:00:14.123 3 471.9 -468.5 2100 2022 2 100.0% 100.0% 100.0% 100.0% 0.01 6.08 0.00 --
26320 2022:059:21:21:25.456 3 487.8 -359.2 2102 2009 0 100.0% 100.0% 100.0% 100.0% 0.01 6.08 0.00 --
26321 2022:061:09:21:54.145 3 486.6 -358.6 2099 2045 0 100.0% 100.0% 100.0% 100.0% 0.01 6.08 0.00 --
26322 2022:062:22:28:43.546 3 487.5 -359.1 2099 2038 0 100.0% 100.0% 100.0% 100.0% 0.01 6.08 0.00 --
26323 2022:065:09:36:48.227 3 488.2 -359.4 2099 2019 2 100.0% 100.0% 100.0% 100.0% 0.02 6.09 0.00 --
26324 2022:066:23:19:42.814 3 488.9 -359.7 2100 2023 0 100.0% 100.0% 100.0% 100.0% 0.01 6.09 0.00 --
26325 2022:068:12:27:51.691 3 473.0 -347.9 2101 2014 0 100.0% 100.0% 100.0% 100.0% 0.01 6.09 0.00 --
26326 2022:070:14:15:06.000 3 482.5 -333.9 2101 2035 0 100.0% 100.0% 100.0% 100.0% 0.01 6.08 0.00 --
26327 2022:072:07:51:37.780 3 491.2 -348.0 2099 2036 0 100.0% 100.0% 100.0% 100.0% 0.01 6.09 0.00 --
26328 2022:073:03:34:20.536 3 488.8 -342.9 2119 2044 1 100.0% 100.0% 100.0% 100.0% 0.01 6.09 0.00 --
26329 2022:075:00:55:51.808 3 488.1 -342.6 2098 2041 1 100.0% 100.0% 100.0% 100.0% 0.02 6.09 0.00 --
26330 2022:075:17:39:50.445 3 487.8 -342.5 2147 2093 0 100.0% 100.0% 100.0% 100.0% 0.01 6.09 0.00 --
29919 2026:009:22:38:58.783 3 -266.4 -4.0 3646 3604 0 100.0% 100.0% 100.0% 100.0% 0.06 6.13 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.