AGASC ID 899678632

Info

Last Obs. 2022:248:11:25
magcatalog 7.02 ± 0.04
mag3 arcsec 6.98 ± 0.01
mag5 arcsec 6.98 ± 0.01
Nobs 23 (0 bad)
fok 99.9%
f3 arcsec 100.0%
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
20202 2018:155:02:48:02.848 3 -47.7 305.2 27649 27643 25 100.0% 100.0% 100.0% 100.0% 0.02 6.95 0.00 --
24293 2021:096:23:22:36.525 3 -70.0 303.3 12274 12271 8 100.0% 100.0% 100.0% 100.0% 0.02 6.97 0.00 --
24292 2021:188:00:48:11.566 3 235.5 -153.5 8370 8370 59 100.0% 100.0% 100.0% 100.0% 0.02 6.97 0.00 --
24291 2021:196:01:27:41.617 3 106.1 -261.0 13737 13725 7 99.9% 100.0% 100.0% 99.9% 0.02 6.97 0.00 --
24285 2021:199:06:35:51.918 3 106.1 -261.0 16408 16389 7 99.9% 100.0% 100.0% 99.9% 0.02 6.97 0.00 --
24289 2021:207:06:54:11.584 3 18.2 -283.0 14174 14173 8 100.0% 100.0% 100.0% 100.0% 0.01 6.98 0.00 --
24290 2021:212:00:15:23.573 3 75.8 -273.0 9823 9821 4 100.0% 100.0% 100.0% 100.0% 0.01 6.97 0.00 --
24288 2021:212:12:31:51.900 3 75.0 -272.6 15425 15363 9 99.6% 100.0% 100.0% 99.6% 0.01 6.97 0.00 --
25086 2021:219:01:56:24.010 3 25.8 -282.2 14232 14170 10 99.6% 100.0% 100.0% 99.5% 0.01 6.98 0.00 --
24280 2021:219:17:34:52.562 3 26.2 -282.2 14222 14219 13 100.0% 100.0% 100.0% 100.0% 0.01 6.98 0.00 --
24282 2021:220:07:02:09.672 3 26.0 -282.2 14331 14330 5 100.0% 100.0% 100.0% 100.0% 0.01 6.98 0.00 --
24287 2021:225:09:12:52.824 3 65.7 -274.4 14723 14721 10 100.0% 100.0% 100.0% 100.0% 0.01 6.98 0.00 --
24294 2021:285:13:58:49.824 3 50.1 -278.0 12600 12599 7 100.0% 100.0% 100.0% 100.0% 0.01 6.98 0.00 --
24283 2022:066:13:21:57.036 4 -39.5 307.4 9353 9350 3 100.0% 100.0% 100.0% 100.0% 0.02 6.99 0.00 --
26352 2022:070:15:56:41.996 4 -40.1 307.8 6655 6654 1 100.0% 100.0% 100.0% 100.0% 0.02 6.99 0.00 --
24286 2022:139:12:45:06.309 4 -21.8 307.6 13829 13755 6 99.5% 100.0% 100.0% 99.5% 0.03 6.99 0.00 --
24284 2022:183:14:29:44.815 3 108.1 284.8 5216 5216 2 100.0% 100.0% 100.0% 100.0% 0.01 6.98 0.00 --
26446 2022:184:01:55:21.787 3 196.1 225.7 8428 8427 7 100.0% 100.0% 100.0% 100.0% 0.01 6.98 0.00 --
23424 2022:192:00:20:13.202 3 223.2 -176.0 5214 5201 2 99.8% 100.0% 100.0% 99.8% 0.03 6.99 0.00 --
26451 2022:192:15:45:09.951 3 223.2 -176.0 4962 4953 1 99.8% 100.0% 100.0% 99.8% 0.02 6.99 0.00 --
26452 2022:195:02:05:38.093 3 104.1 -264.5 9092 9092 0 100.0% 100.0% 100.0% 100.0% 0.02 6.99 0.00 --
24281 2022:228:07:06:03.841 4 64.3 -274.8 8184 8184 4 100.0% 100.0% 100.0% 100.0% 0.01 6.99 0.00 --
27264 2022:248:11:25:43.003 4 57.9 -276.4 8849 8845 9 100.0% 100.0% 100.0% 100.0% 0.02 6.98 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.