AGASC ID 114558824

Info

Last Obs. 2024:079:05:14
magcatalog 9.72 ± 0.08
mag3 arcsec 9.74 ± 0.04
mag5 arcsec 9.74 ± 0.04
Nobs 13 (0 bad)
fok 97.3%
f3 arcsec 99.9%
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
7840 2007:044:08:36:57.597 7 -370.8 -153.6 3011 2938 3 99.4% 100.0% 100.0% 99.4% 0.03 9.73 0.00 --
7837 2007:317:08:59:15.041 7 -437.1 -73.6 2585 2503 6 99.8% 100.0% 100.0% 99.8% 0.04 9.71 0.00 --
8037 2008:042:13:04:29.820 3 327.1 -53.8 2687 2623 3 99.9% 100.0% 100.0% 99.8% 0.03 9.79 0.00 --
8125 2008:055:19:40:57.675 4 164.4 -217.6 2778 2718 4 99.7% 99.9% 100.0% 99.6% 0.04 9.75 0.00 --
14902 2013:039:03:50:17.510 7 139.3 -242.3 15001 14416 18 96.5% 100.0% 100.0% 96.5% 0.04 9.78 0.00 --
19429 2017:040:21:16:41.199 7 -372.3 -149.7 5034 4826 8 97.4% 100.0% 100.0% 97.4% 0.04 9.76 0.00 --
19408 2017:107:04:38:12.996 4 64.6 168.7 7469 7263 7 98.1% 100.0% 100.0% 98.1% 0.11 9.71 0.00 --
19433 2018:133:10:41:33.631 3 -88.5 28.4 7470 7232 22 97.7% 100.0% 100.0% 97.7% 0.09 9.70 0.00 --
19412 2018:133:15:17:27.229 3 -21.5 -103.3 7463 7247 9 97.8% 100.0% 100.0% 97.8% 0.05 9.71 0.00 --
19415 2018:174:21:49:19.754 7 277.7 -383.9 7467 7219 14 97.6% 99.9% 100.0% 97.5% 0.10 9.77 0.00 --
48315 2019:081:22:56:06.557 2 224.1 -312.6 347 273 1 95.1% 98.5% 99.3% 93.7% 0.04 9.78 0.00 --
25003 2021:099:21:58:36.010 4 -146.1 -412.3 10330 9661 15 94.3% 99.8% 99.9% 94.1% 0.10 9.73 0.00 --
26754 2024:079:05:14:49.096 7 -401.1 166.8 2526 2465 2 99.6% 98.5% 99.9% 98.1% 0.19 9.74 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.