AGASC ID 267004928

Info

Last Obs. 2022:247:21:06
magcatalog 9.10 ± 0.05
mag3 arcsec 9.10 ± 0.02
mag5 arcsec 9.10 ± 0.02
Nobs 14 (0 bad)
fok 97.0%
f3 arcsec 99.7%
f5 arcsec 99.8%

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
5005 2005:103:04:24:53.020 4 403.8 207.4 22033 22011 24 99.9% 100.0% 100.0% 99.9% 0.03 9.08 0.00 --
7692 2007:127:12:39:13.353 4 235.6 398.3 2569 2565 7 99.8% 100.0% 100.0% 99.8% 0.03 9.08 0.00 --
15186 2014:019:23:29:11.331 4 320.4 -272.5 44792 43743 41 97.7% 100.0% 100.0% 97.7% 0.05 9.11 0.00 --
16564 2014:022:16:16:14.376 4 320.4 -272.5 22375 22051 23 98.6% 100.0% 100.0% 98.5% 0.04 9.10 0.00 --
16565 2014:024:06:02:42.179 4 320.4 -272.5 10319 10266 15 99.5% 100.0% 100.0% 99.4% 0.02 9.11 0.00 --
17169 2014:277:18:50:18.539 6 -474.2 -303.8 9837 9796 12 99.6% 100.0% 100.0% 99.6% 0.02 9.10 0.00 --
52282 2014:332:01:04:20.673 0 301.1 -144.3 732 731 0 99.9% 100.0% 100.0% 99.9% 0.03 9.11 0.00 --
24489 2021:280:07:13:18.037 4 -361.1 -92.3 13722 13449 10 98.0% 100.0% 100.0% 98.0% 0.07 9.10 0.00 --
24490 2022:089:21:28:04.485 5 341.3 132.7 14507 14287 14 98.5% 100.0% 100.0% 98.5% 0.09 9.12 0.00 --
23844 2022:175:08:57:25.521 5 -138.0 357.8 14491 13852 20 95.6% 100.0% 100.0% 95.5% 0.05 9.12 0.00 --
24488 2022:216:11:47:09.017 5 -316.1 208.6 13807 12412 116 89.9% 97.6% 98.5% 87.7% 0.17 9.11 0.00 --
24491 2022:219:22:59:48.077 5 -316.1 208.6 13773 12385 145 89.9% 97.7% 98.5% 87.9% 0.10 9.12 0.00 --
24490 2022:246:03:52:29.269 5 -370.1 54.0 5840 5771 8 98.8% 100.0% 100.0% 98.8% 0.05 9.12 0.00 --
27331 2022:247:21:06:08.987 5 -364.8 90.7 5088 5043 1 99.1% 99.8% 100.0% 99.0% 0.08 9.08 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.