AGASC ID 551815096

Info

Last Obs. 2023:250:10:59
magcatalog 6.68 ± 0.06
mag3 arcsec 6.71 ± 0.01
mag5 arcsec 6.71 ± 0.01
Nobs 27 (0 bad)
fok 100.0%
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
20362 2018:207:00:31:35.103 4 336.0 -423.2 22589 22510 9 100.0% 100.0% 100.0% 100.0% 0.02 6.70 0.00 --
20358 2018:212:16:51:47.192 5 280.0 -463.7 23263 23188 8 100.0% 100.0% 100.0% 100.0% 0.02 6.71 0.00 --
20361 2018:316:15:54:55.931 5 399.2 408.8 18482 18400 17 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
21875 2018:318:12:52:25.577 5 399.0 408.9 6446 6379 2 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
21654 2020:140:09:09:48.355 5 -335.5 -468.4 18191 18134 4 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
23253 2020:143:01:26:32.592 5 -335.4 -468.5 6241 6184 1 100.0% 100.0% 100.0% 100.0% 0.01 6.72 0.00 --
21653 2020:221:00:53:35.354 4 379.5 -390.4 12350 12259 10 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
23338 2020:222:11:02:13.862 4 378.7 -390.0 9933 9853 3 100.0% 100.0% 100.0% 100.0% 0.02 6.71 0.00 --
21651 2020:238:06:42:57.286 5 428.5 -300.1 23506 23502 10 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
65528 2020:238:06:42:57.286 5 428.5 -300.2 23569 23502 10 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
23014 2021:023:05:16:14.429 5 -290.9 487.9 13070 12993 6 100.0% 100.0% 100.0% 100.0% 0.01 6.72 0.00 --
23874 2021:241:15:43:24.460 5 477.0 -259.6 14562 14466 3 100.0% 100.0% 100.0% 100.0% 0.02 6.71 0.00 --
24258 2021:243:05:07:52.857 6 454.3 -298.9 9420 9336 3 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
24259 2021:246:03:53:54.387 5 486.2 -239.4 18203 18109 5 100.0% 100.0% 100.0% 100.0% 0.02 6.71 0.00 --
23875 2021:322:01:57:28.417 5 385.6 404.2 14410 14335 8 100.0% 100.0% 100.0% 100.0% 0.02 6.71 0.00 --
24514 2021:323:09:07:14.613 5 388.2 403.0 14298 14194 6 99.9% 100.0% 100.0% 99.9% 0.02 6.71 0.00 --
23876 2022:058:16:54:29.022 7 -490.7 281.5 14805 14713 6 100.0% 100.0% 100.0% 100.0% 0.02 6.75 0.00 --
23877 2022:139:04:27:37.729 3 -343.6 -428.0 13798 13737 4 100.0% 100.0% 100.0% 100.0% 0.02 6.73 0.00 --
23878 2022:238:19:10:07.497 3 462.8 -285.0 14641 14551 2 100.0% 100.0% 100.0% 100.0% 0.02 6.72 0.00 --
23879 2022:315:02:49:44.887 3 440.0 338.8 6927 6865 4 100.0% 100.0% 100.0% 100.0% 0.01 6.70 0.00 --
25981 2022:324:12:41:10.717 3 381.0 408.1 6929 6875 2 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
23880 2023:058:12:53:28.104 7 -490.8 281.0 4429 4429 2 100.0% 100.0% 100.0% 100.0% 0.02 6.73 0.00 --
25892 2023:058:12:53:28.104 7 -491.0 281.1 1632 1577 0 100.0% 100.0% 100.0% 100.0% 0.01 6.73 0.00 --
27724 2023:058:21:59:44.166 7 -490.6 280.8 8169 8169 3 100.0% 100.0% 100.0% 100.0% 0.02 6.73 0.00 --
65524 2023:058:21:59:44.166 7 -490.8 281.0 8226 8169 3 100.0% 100.0% 100.0% 100.0% 0.02 6.73 0.00 --
23881 2023:148:20:14:15.433 3 -271.8 -475.5 7404 7353 2 100.0% 100.0% 100.0% 100.0% 0.02 6.71 0.00 --
27876 2023:152:05:34:32.318 3 -244.7 -489.2 4965 4922 2 100.0% 100.0% 100.0% 100.0% 0.02 6.71 0.00 --
27877 2023:154:00:04:25.038 7 -231.4 -495.3 3986 3942 0 100.0% 100.0% 100.0% 100.0% 0.01 6.71 0.00 --
23882 2023:249:07:32:32.622 3 487.2 -240.5 6466 6393 3 100.0% 100.0% 100.0% 100.0% 0.02 6.71 0.00 --
28880 2023:250:10:59:43.475 6 491.9 -232.0 5256 5198 3 100.0% 100.0% 100.0% 100.0% 0.02 6.72 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.