AGASC ID 615909224

Info

Last Obs. 2024:293:12:38
magcatalog 9.65 ± 0.02
mag3 arcsec 9.68 ± 0.05
mag5 arcsec 9.68 ± 0.05
Nobs 11 (0 bad)
fok 99.8%
f3 arcsec 98.4%
f5 arcsec 99.9%

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
7715 2006:330:23:02:31.119 5 26.5 456.9 3560 3498 5 99.8% 99.9% 100.0% 99.7% 0.04 9.66 0.00 --
28588 2024:047:12:34:33.202 7 256.5 357.7 2594 2464 1 99.8% 100.0% 100.0% 99.8% 0.09 9.67 0.00 --
29276 2024:049:04:44:36.610 7 252.0 360.8 2529 2470 0 100.0% 100.0% 100.0% 100.0% 0.09 9.67 0.00 --
29277 2024:049:11:26:41.080 7 252.3 360.5 2537 2467 1 99.9% 100.0% 100.0% 99.9% 0.09 9.67 0.00 --
28646 2024:217:04:52:48.954 6 -232.8 -354.4 6836 6738 3 99.9% 99.0% 100.0% 98.9% 0.24 9.68 0.00 --
28645 2024:223:15:16:08.242 7 -243.8 -347.2 8626 8571 14 99.9% 96.8% 99.7% 96.8% 0.27 9.65 0.00 --
28600 2024:288:08:11:45.103 7 -436.1 12.2 3251 3214 7 99.9% 94.5% 99.8% 94.4% 0.20 9.67 0.00 --
30574 2024:292:14:00:57.226 7 -435.3 -30.8 3744 3700 1 99.9% 99.3% 100.0% 99.2% 0.16 9.73 0.00 --
30575 2024:292:22:38:46.358 7 -436.5 -23.9 2521 2472 1 99.8% 98.4% 100.0% 98.2% 0.12 9.74 0.00 --
30576 2024:293:05:30:07.725 7 -437.4 -18.5 2546 2483 1 100.0% 97.1% 100.0% 97.1% 0.09 9.72 0.00 --
28604 2024:293:12:38:09.731 7 -438.3 -12.7 2519 2474 4 99.9% 99.9% 100.0% 99.8% 0.12 9.70 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.