AGASC ID 44960448

Info

Last Obs. 2024:139:19:45
magcatalog 8.27 ± 0.07
mag3 arcsec 8.30 ± 0.02
mag5 arcsec 8.30 ± 0.02
Nobs 23 (0 bad)
fok 99.8%
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
4047 2003:138:11:06:05.553 5 404.4 357.2 1225 1158 1 99.9% 100.0% 100.0% 99.9% 0.01 8.29 0.00 --
20529 2018:358:14:41:19.015 3 -445.4 -419.0 14773 14603 11 99.3% 100.0% 100.0% 99.3% 0.02 8.29 0.00 --
45504 2022:130:11:54:21.009 2 -15.2 -22.2 317 262 0 98.5% 100.0% 100.0% 98.5% 0.02 8.34 0.00 --
25457 2022:130:12:49:13.001 4 482.5 210.3 10147 10085 16 99.9% 100.0% 100.0% 99.9% 0.02 8.29 0.00 --
45503 2022:130:18:39:33.580 2 -14.8 -22.2 313 279 0 99.6% 99.6% 99.6% 99.3% 0.02 8.34 0.00 --
45497 2022:131:09:36:37.980 2 -13.7 -22.4 319 258 1 99.2% 100.0% 100.0% 99.2% 0.02 8.33 0.00 --
26417 2022:131:10:31:29.781 4 482.3 210.4 9901 9846 12 99.9% 100.0% 100.0% 99.9% 0.02 8.29 0.00 --
45496 2022:131:16:14:20.554 2 0.6 -33.8 315 274 0 99.3% 100.0% 100.0% 99.3% 0.03 8.36 0.00 --
45490 2022:135:04:56:53.250 2 -7.7 -22.9 318 277 1 100.0% 100.0% 100.0% 100.0% 0.02 8.32 0.00 --
25863 2022:135:05:35:23.422 4 467.7 244.2 7953 7877 9 99.7% 100.0% 100.0% 99.7% 0.02 8.30 0.00 --
45489 2022:135:10:15:10.674 2 6.6 -34.2 313 276 0 99.6% 100.0% 100.0% 99.6% 0.02 8.35 0.00 --
45461 2022:147:21:50:42.928 2 -238.5 -262.3 318 269 0 99.6% 100.0% 100.0% 99.6% 0.02 8.31 0.00 --
45460 2022:148:04:20:03.657 2 -222.6 -275.2 314 277 1 100.0% 100.0% 100.0% 100.0% 0.02 8.30 0.00 --
45459 2022:148:21:57:43.247 2 -231.6 -267.8 322 260 0 100.0% 100.0% 100.0% 100.0% 0.03 8.30 0.00 --
45458 2022:149:05:59:44.629 2 -215.5 -280.8 315 279 0 99.6% 100.0% 100.0% 99.6% 0.02 8.31 0.00 --
45453 2022:149:17:06:15.535 2 -212.4 -283.2 321 268 0 99.6% 100.0% 100.0% 99.6% 0.02 8.30 0.00 --
45452 2022:149:22:33:22.942 2 -210.9 -284.3 316 275 1 98.9% 100.0% 100.0% 98.9% 0.03 8.30 0.00 --
27213 2024:108:19:16:47.268 5 454.7 -392.1 3460 3396 2 100.0% 99.9% 100.0% 99.9% 0.04 8.31 0.00 --
29376 2024:111:03:12:35.496 5 481.9 -359.0 3506 3445 2 100.0% 99.9% 100.0% 99.9% 0.04 8.31 0.00 --
27212 2024:115:03:17:31.608 5 470.8 -371.1 3753 3689 2 100.0% 100.0% 100.0% 100.0% 0.04 8.31 0.00 --
29391 2024:115:14:54:03.694 5 481.2 -358.7 3756 3689 1 100.0% 100.0% 100.0% 100.0% 0.04 8.31 0.00 --
27211 2024:139:09:39:42.606 5 374.9 495.3 4001 3939 2 100.0% 100.0% 100.0% 100.0% 0.03 8.33 0.00 --
29409 2024:139:19:45:10.411 5 379.3 491.8 3390 3323 67 100.0% 100.0% 100.0% 100.0% 0.06 8.31 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.