AGASC ID 335030152

Info

Last Obs. 2024:173:07:40
magcatalog 9.70 ± 0.06
mag3 arcsec 9.70 ± 0.04
mag5 arcsec 9.70 ± 0.04
Nobs 16 (1 bad)
fok 98.9%
f3 arcsec 99.7%
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
4241 2003:085:13:36:41.895 7 200.6 378.4 2586 2511 5 99.1% 100.0% 100.0% 99.1% 0.04 9.71 0.00 --
4282 2003:085:18:12:11.895 6 -360.5 -306.7 3148 3097 2 100.0% 100.0% 100.0% 100.0% 0.03 9.70 0.00 --
4255 2003:087:08:21:52.991 7 -188.3 314.4 2719 2640 2 98.7% 100.0% 100.0% 98.7% 0.05 9.69 0.00 --
4267 2003:087:10:11:32.991 7 -375.2 86.4 2528 2478 2 99.9% 100.0% 100.0% 99.9% 0.05 9.71 0.00 --
4258 2003:087:15:21:02.991 7 -382.9 282.1 2531 2482 1 100.0% 100.0% 100.0% 100.0% 0.04 9.70 0.00 --
7015 2006:308:21:46:01.468 7 445.4 31.3 2607 2489 3 97.5% 100.0% 100.0% 97.5% 0.05 9.69 0.00 --
9895 2009:099:03:29:50.360 6 -245.8 280.0 15194 15117 27 99.8% 100.0% 100.0% 99.8% 0.04 9.68 0.00 --
10453 2009:307:05:11:12.241 6 267.5 -387.9 17222 17112 30 99.8% 100.0% 100.0% 99.8% 0.03 9.74 0.00 --
18592 2016:127:12:44:47.208 7 -444.0 454.2 12329 11925 11 97.1% 100.0% 100.0% 97.1% 0.09 9.69 0.00 --
51050 2016:127:20:04:37.377 6 -444.0 454.2 81 45 0 95.7% 100.0% 100.0% 95.7% 0.01 9.68 0.00 --
19657 2017:219:22:09:59.892 7 -268.7 -196.9 12785 12472 102 98.7% 99.9% 100.0% 98.7% 0.10 9.65 0.00 --
49834 2017:235:04:34:30.705 6 -33.2 -222.9 182 61 0 100.0% 100.0% 100.0% 100.0% 0.02 9.69 0.00 --
19656 2018:122:01:48:45.625 7 -463.0 223.5 11863 11484 16 97.3% 100.0% 100.0% 97.3% 0.07 9.70 0.00 --
26787 2024:023:13:01:27.857 7 191.8 399.7 4770 4667 3 99.9% 97.9% 100.0% 97.8% 0.18 9.67 0.00 --
29211 2024:024:09:13:55.112 7 179.1 406.1 48 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Failed acquisition NSM transition
29212 2024:173:07:40:12.588 7 -358.8 -256.0 9838 9781 4 99.8% 97.8% 99.7% 97.7% 0.37 9.75 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.