AGASC ID 837162832

Info

Last Obs. 2023:245:06:51
magcatalog 8.85 ± 0.09
mag3 arcsec 8.88 ± 0.02
mag5 arcsec 8.88 ± 0.02
Nobs 28 (4 bad)
fok 99.3%
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
2977 2002:254:00:42:32.835 4 242.3 233.7 72679 72574 62 99.9% 100.0% 100.0% 99.9% 0.03 8.87 0.00 --
7821 2007:194:11:14:49.531 3 -450.4 -348.4 7457 7397 7 99.9% 100.0% 100.0% 99.9% 0.02 8.88 0.00 --
12828 2011:269:20:23:37.709 5 314.6 94.8 79825 79657 93 99.9% 100.0% 100.0% 99.9% 0.03 8.87 0.00 --
12829 2011:272:06:45:59.701 5 314.6 94.8 91955 91664 109 99.7% 100.0% 100.0% 99.7% 0.03 8.87 0.00 --
55153 2011:274:11:40:53.663 3 314.6 94.8 95 47 0 100.0% 100.0% 100.0% 100.0% 0.00 8.87 0.00 --
12830 2011:274:22:42:04.425 5 314.6 94.8 24135 24040 32 99.9% 100.0% 100.0% 99.8% 0.02 8.87 0.00 --
24465 2021:221:20:48:44.820 6 -306.7 166.6 14778 14425 13 98.1% 100.0% 100.0% 98.1% 0.04 8.91 0.00 --
24783 2021:224:09:36:03.715 5 -298.5 182.0 14778 14426 20 98.0% 100.0% 100.0% 98.0% 0.05 8.91 0.00 --
24467 2021:232:19:01:14.178 5 -226.6 264.5 14777 14582 15 99.1% 100.0% 100.0% 99.1% 0.09 8.89 0.00 --
24462 2021:234:16:37:16.571 5 -226.3 264.3 13311 13092 13 99.0% 100.0% 100.0% 99.0% 0.09 8.89 0.00 --
23678 2021:237:12:45:36.488 6 -117.3 329.1 13316 12943 8 97.8% 100.0% 100.0% 97.8% 0.05 8.89 0.00 --
25983 2021:238:08:09:22.671 6 -118.6 329.7 12341 12027 11 98.0% 100.0% 100.0% 98.0% 0.05 8.90 0.00 --
24469 2021:240:02:29:47.224 6 -118.1 329.5 12830 12506 30 97.9% 100.0% 100.0% 97.9% 0.05 8.89 0.00 --
24785 2021:243:11:56:19.194 5 29.1 344.5 16246 15873 20 98.2% 100.0% 100.0% 98.2% 0.10 8.88 0.00 --
24520 2021:245:12:49:45.504 5 26.5 345.7 12355 11636 15 98.2% 100.0% 100.0% 98.2% 0.06 8.90 0.00 --
24714 2022:010:07:50:26.003 5 318.3 -54.3 10885 10544 11 97.7% 100.0% 100.0% 97.7% 0.05 8.93 0.00 --
27810 2023:114:10:43:27.823 4 -342.8 -7.5 246 193 0 98.0% 100.0% 100.0% 98.0% 0.01 8.91 0.00 --
25991 2023:114:10:43:27.823 4 -342.7 -7.4 3648 3561 4 97.6% 100.0% 100.0% 97.6% 0.04 8.90 0.00 --
24466 2023:118:03:07:17.417 4 -342.9 3.6 3660 3532 1 97.7% 100.0% 100.0% 97.7% 0.06 8.91 0.00 --
27817 2023:119:18:25:25.453 4 -341.6 -1.2 2575 2508 1 99.4% 99.9% 99.9% 99.4% 0.07 8.92 0.00 --
27814 2023:120:16:49:48.419 4 -344.7 1.2 3652 3490 4 97.1% 100.0% 100.0% 97.1% 0.07 8.93 0.00 --
24784 2023:161:04:47:49.618 4 -342.0 41.8 2474 2472 1 99.9% 100.0% 100.0% 99.9% 0.14 8.89 0.00 --
24784 2023:161:04:47:49.618 4 -342.0 41.9 2523 2472 3 99.9% 100.0% 100.0% 99.9% 0.08 8.90 0.00 --
27889 2023:161:16:19:01.838 4 -341.4 42.0 2878 2830 15 99.9% 100.0% 100.0% 99.9% 0.09 8.90 0.00 --
24782 2023:232:23:21:16.237 4 -241.9 249.1 3609 3559 3 100.0% 99.6% 100.0% 99.6% 0.07 8.88 0.00 --
28491 2023:237:07:28:47.105 4 -179.1 300.6 3684 3620 1 99.9% 100.0% 100.0% 99.9% 0.07 8.90 0.00 --
25992 2023:240:16:54:22.694 4 -95.0 335.1 0 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Error: No level 0 data.
28873 2023:243:12:36:40.646 4 -4.3 345.8 0 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Error: No level 0 data.
24464 2023:243:14:35:21.102 4 -58.8 341.8 0 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Error: No level 0 data.
28871 2023:245:06:51:42.337 4 52.8 340.9 0 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Error: No level 0 data.

  • 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.