AGASC ID 35000464

Info

Last Obs. 2024:075:01:19
magcatalog 8.72 ± 0.10
mag3 arcsec 8.78 ± 0.02
mag5 arcsec 8.78 ± 0.02
Nobs 19 (11 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
7142 2006:029:07:40:12.003 5 -455.3 -323.2 4531 4467 10 99.9% 100.0% 100.0% 99.9% 0.01 8.79 0.00 --
7406 2007:302:21:17:28.912 7 323.1 -477.8 3402 3230 5 98.3% 100.0% 100.0% 98.3% 0.02 8.73 0.00 Venus observation
9741 2007:302:23:45:40.189 4 323.7 -417.1 3370 3307 5 99.8% 100.0% 100.0% 99.8% 0.02 8.73 0.00 Venus observation
9742 2007:303:01:44:10.189 3 324.7 -357.2 3368 3308 4 100.0% 100.0% 100.0% 100.0% 0.02 8.72 0.00 Venus observation
9743 2007:303:03:42:40.189 3 326.4 -298.0 3366 3296 2 99.5% 100.0% 100.0% 99.5% 0.03 8.72 0.00 Venus observation
9744 2007:303:05:41:10.189 3 328.5 -238.8 3415 3355 4 99.9% 100.0% 100.0% 99.9% 0.05 8.71 0.00 Venus observation
9745 2007:303:07:41:20.189 4 331.1 -179.7 3417 3357 5 99.9% 100.0% 100.0% 99.9% 0.03 8.71 0.00 Venus observation
9746 2007:303:09:41:30.189 3 334.2 -120.8 3419 3351 5 99.7% 100.0% 100.0% 99.6% 0.02 8.72 0.00 Venus observation
9747 2007:303:11:41:40.189 2 337.8 -62.1 3413 3358 1 99.9% 100.0% 100.0% 99.9% 0.03 8.71 0.00 Venus observation
9749 2007:303:15:42:00.189 3 346.4 54.9 3426 3360 4 99.9% 100.0% 100.0% 99.9% 0.03 8.69 0.00 Venus observation
9752 2007:303:17:42:10.189 3 351.4 113.2 3412 3352 7 99.8% 100.0% 100.0% 99.8% 0.03 8.70 0.00 Venus observation
9753 2007:303:19:42:20.189 4 356.8 171.7 3413 3359 27 99.9% 100.0% 100.0% 99.9% 0.04 8.69 0.00 Venus observation
52090 2015:041:03:54:32.301 5 -98.7 -489.5 387 331 0 98.5% 100.0% 100.0% 98.5% 0.02 8.76 0.00 --
51261 2016:045:21:53:57.230 3 -371.7 -431.8 2574 2506 6 99.4% 99.9% 100.0% 99.3% 0.03 8.78 0.00 --
19547 2017:028:02:40:54.384 3 -325.9 -134.0 1674 1605 1 98.4% 100.0% 100.0% 98.4% 0.03 8.78 0.00 --
46541 2021:059:16:59:22.696 2 -379.3 234.7 573 305 0 58.9% 100.0% 100.0% 58.9% 0.02 8.80 0.00 --
46536 2021:062:03:37:20.040 3 -473.1 -275.3 920 750 0 85.2% 100.0% 100.0% 85.2% 0.04 8.79 0.00 --
43620 2024:072:11:04:46.384 3 -451.4 471.4 2385 1934 1 99.9% 99.6% 100.0% 99.6% 0.05 8.77 0.00 --
43615 2024:075:01:19:50.481 4 -457.3 163.9 2697 2643 2 99.8% 100.0% 100.0% 99.8% 0.08 8.80 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.