AGASC ID 901389784

Info

Last Obs. 2023:183:16:42
magcatalog 8.24 ± 0.43
mag3 arcsec 8.52 ± 0.01
mag5 arcsec 8.52 ± 0.01
Nobs 27 (1 bad)
fok 98.6%
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
18815 2016:109:21:36:50.791 5 -396.1 34.7 14794 14657 7 99.1% 100.0% 100.0% 99.1% 0.02 8.52 0.00 --
20202 2018:155:02:48:02.848 6 -390.9 -28.2 27649 27291 29 98.7% 100.0% 100.0% 98.7% 0.05 8.52 0.00 --
47115 2020:174:09:15:06.000 6 286.2 -44.5 419 413 0 98.6% 100.0% 100.0% 98.6% 0.02 8.51 0.00 --
24293 2021:096:23:22:36.525 6 -391.0 -51.7 12274 12239 21 99.7% 100.0% 100.0% 99.7% 0.03 8.52 0.00 --
24292 2021:188:00:48:11.566 5 217.7 324.2 8370 8170 55 97.6% 100.0% 100.0% 97.6% 0.04 8.52 0.00 --
46227 2021:191:17:13:10.998 6 -273.4 -49.0 289 288 1 100.0% 100.0% 100.0% 100.0% 0.02 8.54 0.00 --
24291 2021:196:01:27:41.617 6 351.5 149.4 13737 13633 8 99.2% 100.0% 100.0% 99.2% 0.06 8.52 0.00 --
24285 2021:199:06:35:51.918 6 351.5 149.4 16408 16239 25 99.0% 100.0% 100.0% 99.0% 0.05 8.51 0.00 --
24289 2021:207:06:54:11.584 6 375.5 34.6 14174 14147 6 99.8% 100.0% 100.0% 99.8% 0.04 8.51 0.00 --
24290 2021:212:00:15:23.573 6 366.1 107.0 9823 9681 6 98.6% 100.0% 100.0% 98.6% 0.04 8.51 0.00 --
24288 2021:212:12:31:51.900 6 365.3 107.4 15422 15227 15 98.7% 100.0% 100.0% 98.7% 0.04 8.52 0.00 --
25086 2021:219:01:56:24.010 6 374.8 44.7 14229 14033 20 98.6% 100.0% 100.0% 98.6% 0.04 8.51 0.00 --
24280 2021:219:17:34:52.562 6 375.2 44.7 14222 13951 15 98.1% 100.0% 100.0% 98.1% 0.04 8.51 0.00 --
24282 2021:220:07:02:09.672 6 375.0 44.7 14331 14093 15 98.3% 100.0% 100.0% 98.3% 0.03 8.52 0.00 --
24287 2021:225:09:12:52.824 5 366.6 97.3 14726 14452 13 98.1% 100.0% 100.0% 98.1% 0.05 8.51 0.00 --
24294 2021:285:13:58:49.824 6 370.6 76.6 12600 12468 10 99.0% 100.0% 100.0% 99.0% 0.05 8.52 0.00 --
24283 2022:066:13:21:57.036 6 -394.7 -13.3 9353 9252 11 98.9% 100.0% 100.0% 98.9% 0.04 8.53 0.00 --
26352 2022:070:15:56:41.996 6 -395.3 -13.1 6655 6551 13 98.4% 100.0% 100.0% 98.4% 0.03 8.54 0.00 --
24286 2022:139:12:45:06.309 7 -393.3 5.6 13826 13609 10 98.4% 100.0% 100.0% 98.4% 0.05 8.55 0.00 --
24284 2022:183:14:29:44.815 5 -358.2 177.8 5216 5144 3 98.6% 100.0% 100.0% 98.6% 0.03 8.54 0.00 --
26446 2022:184:01:55:21.787 5 -277.7 291.2 8428 8345 7 99.0% 100.0% 100.0% 99.0% 0.03 8.54 0.00 --
23424 2022:192:00:20:13.202 5 247.1 301.6 5214 5185 4 99.5% 100.0% 100.0% 99.5% 0.06 8.51 0.00 --
26451 2022:192:15:45:09.951 5 247.1 301.4 4962 4904 1 98.8% 100.0% 100.0% 98.8% 0.06 8.53 0.00 --
26452 2022:195:02:05:38.093 6 356.5 141.7 9092 8954 5 98.5% 100.0% 100.0% 98.5% 0.05 8.50 0.00 --
24281 2022:228:07:06:03.841 6 366.8 95.5 8184 8085 7 98.8% 100.0% 100.0% 98.8% 0.04 8.51 0.00 --
27264 2022:248:11:25:43.003 6 368.8 86.7 8852 8618 6 97.4% 100.0% 100.0% 97.3% 0.05 8.53 0.00 --
44375 2023:183:16:42:06.000 3 -341.9 -19.4 268 267 0 100.0% 70.4% 79.4% 70.4% 1.89 9.74 0.11 --

  • 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.