AGASC ID 391517448

Info

Last Obs. 2023:327:04:44
magcatalog 8.72 ± 0.04
mag3 arcsec 8.79 ± 0.02
mag5 arcsec 8.79 ± 0.02
Nobs 29 (0 bad)
fok 98.2%
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
61190 2002:137:10:38:41.841 3 168.1 -191.4 10294 10215 32 99.7% 100.0% 100.0% 99.7% 0.04 8.78 0.00 --
25746 2021:330:20:22:19.837 4 418.6 70.6 14881 14635 20 98.9% 100.0% 100.0% 98.8% 0.07 8.77 0.00 --
25747 2022:008:03:39:29.563 3 303.2 302.9 9908 9685 12 98.4% 100.0% 100.0% 98.4% 0.04 8.80 0.00 --
26255 2022:008:15:39:21.594 3 303.5 302.8 5031 4860 3 98.3% 100.0% 100.0% 98.3% 0.04 8.80 0.00 --
25757 2022:013:02:22:03.153 3 254.6 346.4 10392 10209 11 99.0% 100.0% 100.0% 99.0% 0.04 8.78 0.00 --
25741 2022:015:20:59:52.779 3 256.3 345.6 5904 5459 9 93.8% 100.0% 100.0% 93.8% 0.03 8.78 0.00 --
25756 2022:028:21:46:32.578 5 17.4 431.1 7459 7201 13 97.4% 100.0% 100.0% 97.4% 0.05 8.81 0.00 --
26287 2022:029:10:12:24.996 5 17.6 431.0 6970 6735 8 97.5% 100.0% 100.0% 97.5% 0.03 8.80 0.00 --
25758 2022:038:21:51:44.856 7 -178.4 388.3 9411 9067 16 96.9% 100.0% 100.0% 96.9% 0.03 8.78 0.00 --
25752 2022:039:08:32:37.552 7 -178.8 388.6 8437 8273 10 98.7% 100.0% 100.0% 98.7% 0.03 8.79 0.00 --
25753 2022:039:18:40:10.249 7 -179.1 388.7 8436 8207 20 97.9% 100.0% 100.0% 97.9% 0.05 8.79 0.00 --
25754 2022:040:04:47:42.946 7 -179.3 388.8 8192 7892 11 97.1% 100.0% 100.0% 97.1% 0.04 8.79 0.00 --
65526 2022:047:21:57:32.125 7 -257.3 337.2 9905 9570 8 97.2% 100.0% 100.0% 97.2% 0.09 8.80 0.00 --
25755 2022:086:07:29:21.666 5 -397.0 134.8 24529 24311 17 99.4% 100.0% 100.0% 99.4% 0.09 8.80 0.00 --
25751 2022:126:09:02:59.180 5 -415.5 42.7 16384 15900 19 97.4% 100.0% 100.0% 97.4% 0.05 8.82 0.00 --
25751 2022:126:09:02:59.180 5 -415.3 42.6 16325 15899 19 97.4% 100.0% 100.0% 97.4% 0.05 8.82 0.00 --
25742 2022:261:05:43:41.895 5 402.6 -114.3 13806 13592 12 98.9% 100.0% 100.0% 98.9% 0.07 8.84 0.00 --
25744 2022:365:20:46:26.115 7 352.6 243.3 5044 4844 2 97.1% 100.0% 100.0% 97.1% 0.07 8.79 0.00 --
25467 2023:002:03:25:27.222 7 344.0 253.7 5288 5099 5 97.6% 100.0% 100.0% 97.6% 0.04 8.78 0.00 --
27630 2023:002:21:24:29.822 7 342.2 258.1 6235 6026 3 97.6% 99.9% 100.0% 97.5% 0.07 8.78 0.00 --
27631 2023:007:14:45:37.544 6 312.7 294.6 4268 4182 5 99.5% 100.0% 100.0% 99.5% 0.06 8.78 0.00 --
25743 2023:008:00:55:08.441 6 310.0 297.8 5020 4953 3 99.6% 100.0% 100.0% 99.6% 0.07 8.77 0.00 --
27633 2023:008:11:56:04.695 6 306.7 301.4 4235 4050 4 96.9% 98.8% 100.0% 95.7% 0.05 8.76 0.00 --
27632 2023:008:20:31:31.484 6 303.8 304.4 3833 3706 1 98.1% 100.0% 100.0% 98.1% 0.05 8.75 0.00 --
25748 2023:010:04:21:46.535 6 288.9 317.1 5221 5062 10 98.2% 100.0% 100.0% 98.2% 0.04 8.78 0.00 --
27652 2023:011:02:59:42.031 6 277.4 327.8 4974 4850 9 98.7% 100.0% 100.0% 98.7% 0.03 8.77 0.00 --
25749 2023:070:09:26:50.667 5 -370.7 202.3 6909 6786 8 98.8% 99.9% 100.0% 98.7% 0.04 8.77 0.00 --
25745 2023:079:01:24:20.340 5 -399.0 127.9 13617 13292 2 97.9% 100.0% 100.0% 97.9% 0.08 8.78 0.00 --
25750 2023:274:05:10:58.981 5 415.4 -46.8 2536 2472 0 99.9% 100.0% 100.0% 99.9% 0.06 8.82 0.00 --
28933 2023:327:04:44:58.139 5 420.8 18.1 2537 2482 4 100.0% 100.0% 100.0% 100.0% 0.06 8.79 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.