AGASC ID 685388192

Info

Last Obs. 2024:250:00:52
magcatalog 8.81 ± 0.02
mag3 arcsec 8.85 ± 0.03
mag5 arcsec 8.85 ± 0.03
Nobs 27 (0 bad)
fok 99.7%
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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
57674 2008:209:15:20:06.000 4 -475.8 -382.4 5877 5810 13 99.9% 100.0% 100.0% 99.8% 0.02 8.83 0.00 --
57670 2008:212:08:16:53.507 1 -469.1 -390.6 4569 4522 9 99.9% 99.9% 100.0% 99.8% 0.03 8.83 0.00 --
57666 2008:214:22:00:35.922 1 -462.0 -399.0 6377 6327 9 99.8% 99.9% 100.0% 99.7% 0.04 8.82 0.00 --
20778 2018:204:00:00:12.903 7 429.2 -149.2 18689 18610 16 99.9% 100.0% 100.0% 99.9% 0.03 8.83 0.00 --
21131 2018:206:15:15:57.103 7 430.3 -149.7 15756 15655 21 99.7% 100.0% 100.0% 99.7% 0.03 8.83 0.00 --
21132 2018:207:13:56:17.524 7 432.3 -150.7 17717 17419 21 98.7% 100.0% 100.0% 98.6% 0.04 8.82 0.00 --
21133 2018:208:08:48:05.726 7 432.5 -150.8 12589 12476 15 99.6% 100.0% 100.0% 99.6% 0.06 8.82 0.00 --
21134 2018:210:10:22:46.675 7 432.7 -150.9 8443 8265 12 98.9% 100.0% 100.0% 98.9% 0.04 8.82 0.00 --
46762 2020:333:02:29:21.778 7 11.0 -236.6 345 258 1 94.5% 100.0% 100.0% 94.5% 0.02 8.86 0.00 --
46126 2021:236:18:19:59.730 6 125.2 99.3 1440 1351 4 98.0% 99.8% 100.0% 97.8% 0.04 8.82 0.00 --
28722 2024:147:17:24:42.609 5 409.3 -212.3 6196 6124 0 100.0% 100.0% 100.0% 99.9% 0.10 8.87 0.00 --
28721 2024:153:23:09:20.601 5 416.3 -197.4 6197 6124 2 99.9% 100.0% 100.0% 99.9% 0.08 8.87 0.00 --
28701 2024:168:22:21:26.235 5 403.0 -222.6 5046 4972 2 99.9% 100.0% 100.0% 99.9% 0.07 8.87 0.00 --
28702 2024:169:09:00:59.816 5 403.4 -222.4 8392 8321 5 99.9% 100.0% 100.0% 99.9% 0.08 8.87 0.00 --
28703 2024:170:15:45:05.290 5 404.8 -221.3 8267 8198 2 100.0% 99.8% 100.0% 99.8% 0.10 8.86 0.00 --
28704 2024:171:21:36:35.946 5 404.5 -220.1 8392 8319 0 100.0% 99.9% 100.0% 99.9% 0.13 8.87 0.00 --
28720 2024:174:13:40:09.684 5 405.8 -217.6 9611 9551 2 100.0% 100.0% 100.0% 99.9% 0.09 8.87 0.00 --
28719 2024:217:13:22:02.486 4 466.6 -16.7 6656 6585 5 100.0% 99.1% 100.0% 99.1% 0.14 8.90 0.00 --
28715 2024:225:12:27:50.179 4 460.0 -72.8 6187 6120 2 100.0% 100.0% 100.0% 100.0% 0.10 8.88 0.00 --
29506 2024:226:06:13:35.214 4 458.8 -63.2 7659 7587 5 99.9% 100.0% 100.0% 99.9% 0.10 8.89 0.00 --
28337 2024:227:10:47:51.908 5 430.7 -167.8 4490 4432 4 100.0% 99.9% 100.0% 99.9% 0.08 8.89 0.00 --
29505 2024:231:13:39:08.333 5 456.0 114.3 6161 6083 2 99.9% 100.0% 100.0% 99.9% 0.13 8.84 0.00 --
28718 2024:243:08:05:19.348 5 162.2 453.9 4603 4536 3 99.9% 100.0% 100.0% 99.9% 0.09 8.84 0.00 --
28717 2024:245:15:38:54.020 6 -19.2 484.0 3504 3443 1 99.9% 100.0% 100.0% 99.9% 0.09 8.84 0.00 --
28710 2024:248:05:02:16.298 7 -136.4 464.7 4723 4667 1 100.0% 99.9% 100.0% 99.9% 0.12 8.81 0.00 --
29519 2024:248:21:53:25.924 5 -249.8 415.2 5451 5407 2 100.0% 100.0% 100.0% 100.0% 0.09 8.83 0.00 --
28711 2024:250:00:52:37.883 3 -271.8 402.4 4963 4920 2 100.0% 100.0% 100.0% 100.0% 0.06 8.84 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.