AGASC ID 837550944

Info

Last Obs. 2023:250:18:25
magcatalog 9.51 ± 0.09
mag3 arcsec 9.54 ± 0.04
mag5 arcsec 9.54 ± 0.04
Nobs 20 (2 bad)
fok 98.3%
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
12828 2011:269:20:23:37.709 6 -79.2 -223.4 79973 78588 89 98.3% 100.0% 100.0% 98.3% 0.05 9.52 0.00 --
12829 2011:272:06:45:59.701 6 -79.2 -223.4 92049 90620 107 98.5% 100.0% 100.0% 98.5% 0.05 9.52 0.00 --
55153 2011:274:11:40:53.663 4 -79.2 -223.4 86 47 0 100.0% 100.0% 100.0% 100.0% 0.01 9.51 0.00 --
12830 2011:274:22:42:04.425 6 -79.2 -223.4 24165 23780 26 98.6% 100.0% 100.0% 98.6% 0.05 9.52 0.00 --
54698 2012:108:03:32:45.663 5 -320.1 351.2 342 286 7 98.3% 97.6% 99.0% 95.9% 0.02 9.51 0.00 --
54688 2012:110:19:39:57.994 4 -315.4 355.5 151 93 0 92.1% 100.0% 100.0% 92.1% 0.02 9.49 0.00 --
52578 2014:217:23:35:47.897 7 -418.1 -213.8 3208 3161 9 99.7% 99.8% 100.0% 99.5% 0.05 9.54 0.00 --
24785 2021:243:11:56:19.194 6 193.3 -134.5 16265 15600 18 96.4% 98.2% 99.5% 94.7% 0.22 9.62 0.00 --
24520 2021:245:12:49:45.504 6 190.7 -133.3 12368 11657 19 98.4% 100.0% 100.0% 98.3% 0.11 9.65 0.00 --
24714 2022:010:07:50:26.003 6 -174.8 -169.8 10881 10478 11 97.1% 100.0% 100.0% 97.0% 0.10 9.55 0.00 --
27810 2023:114:10:43:27.823 7 103.6 232.4 255 192 0 97.5% 98.4% 100.0% 95.9% 0.03 9.56 0.00 --
25991 2023:114:10:43:27.823 7 103.4 232.3 3648 3615 3 99.1% 99.6% 100.0% 98.7% 0.10 9.56 0.00 --
24466 2023:118:03:07:17.417 7 111.4 228.3 3669 3575 3 98.9% 94.6% 100.0% 93.6% 0.10 9.53 0.00 --
27817 2023:119:18:25:25.453 7 109.6 229.3 2586 2465 3 97.7% 97.1% 99.8% 94.9% 0.13 9.58 0.00 --
27814 2023:120:16:49:48.419 7 107.4 230.3 3663 3543 3 98.5% 99.9% 100.0% 98.5% 0.06 9.60 0.00 --
24784 2023:161:04:47:49.618 7 134.6 213.4 2473 2471 0 99.9% 99.8% 100.0% 99.7% 0.13 9.58 0.00 --
24784 2023:161:04:47:49.618 7 134.8 213.5 2540 2471 0 99.9% 99.8% 100.0% 99.7% 0.09 9.55 0.00 --
27889 2023:161:16:19:01.838 7 135.7 213.0 2895 2832 0 100.0% 99.4% 100.0% 99.3% 0.12 9.55 0.00 --
25992 2023:240:16:54:22.694 7 230.6 -53.0 2554 2490 2 100.0% 98.0% 100.0% 98.0% 0.09 9.65 0.00 --
28871 2023:245:06:51:42.337 7 181.0 -149.1 3589 3519 1 99.9% 99.2% 100.0% 99.1% 0.17 9.63 0.00 --
24470 2023:249:01:58:18.725 7 116.7 -202.7 0 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Error: No level 0 data.
28883 2023:250:18:25:19.047 6 88.6 -216.3 0 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Error: No level 0 data.

  • 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.