ACA Magnitude Statistics

2026:012:00:20:46.316 Update Report

Time range 2025:287:00:20:46.147 – 2026:012:00:20:46.147
Stars 97
Failures 0

Stars

AGASC ID Last Obs nobs nbad nfail fok fmag est ok 3 f5 arcsec magcatalog magobs δmag cat δmag/σmag δmag δσ color
31989744 2025:348 22 1 99.2% 99.2% 100.0% 8.93 ± 0.02 8.95 ± 0.04 0.01 0.72 – – 1.26
37879960 2026:004 7 1 99.4% 98.0% 100.0% 9.09 ± 0.02 9.13 ± 0.04 0.05 2.33 – – 1.19
37879992 2026:004 4 1 99.1% 98.6% 100.0% 10.43 ± 0.02 10.28 ± 0.08 -0.15 -7.35 – – 0.91
37882072 2026:004 3 1 99.7% 95.0% 100.0% 10.05 ± 0.02 10.09 ± 0.12 0.03 1.46 – – 0.55
37882416 2026:004 3 1 99.5% 95.9% 100.0% 10.41 ± 0.02 10.36 ± 0.18 -0.06 -3.08 – – 0.82
38280776 2026:004 6 1 99.3% 97.4% 100.0% 8.80 ± 0.02 8.82 ± 0.04 0.02 1.17 – – 1.24
52693088 2025:299 3 1 99.6% 99.5% 100.0% 8.64 ± 0.02 8.65 ± 0.03 0.01 0.64 – – 1.26
52693160 2025:299 3 1 99.6% 99.6% 100.0% 7.51 ± 0.02 7.52 ± 0.03 0.01 0.45 – – 0.49
53217592 2025:299 3 1 99.5% 99.4% 100.0% 8.79 ± 0.02 8.81 ± 0.03 0.02 0.92 – – 0.71
53221352 2025:299 2 1 100.0% 100.0% 100.0% 8.30 ± 0.02 8.30 ± 0.03 0.01 0.30 – – 1.33
53226584 2025:299 3 1 97.8% 97.8% 100.0% 9.25 ± 0.02 9.25 ± 0.03 0.01 0.31 – – 1.28
53230616 2025:299 4 1 100.0% 100.0% 100.0% 6.14 ± 0.02 6.11 ± 0.05 -0.03 -1.51 – – 2.66
53231304 2025:299 2 1 99.0% 98.9% 100.0% 9.31 ± 0.02 9.29 ± 0.03 -0.02 -0.83 – – 0.79
53346328 2025:299 3 1 99.9% 99.8% 100.0% 8.18 ± 0.02 8.18 ± 0.03 0.01 0.28 – – 0.60
58208648 2025:291 10 1 99.7% 99.7% 100.0% 8.05 ± 0.02 8.06 ± 0.03 0.01 0.59 – – 1.34
58213808 2025:291 3 1 99.9% 99.8% 100.0% 8.50 ± 0.02 8.52 ± 0.03 0.02 0.95 – – 1.38
58214496 2025:291 6 1 99.7% 99.7% 100.0% 8.27 ± 0.02 8.30 ± 0.03 0.03 1.65 – – 1.33
58215552 2025:291 13 1 99.9% 99.9% 100.0% 7.55 ± 0.02 7.57 ± 0.03 0.02 0.88 – – 1.87
75506392 2025:313 6 1 99.6% 99.6% 100.0% 7.48 ± 0.02 7.48 ± 0.03 0.00 0.22 – – 0.70
75512824 2025:313 6 1 100.0% 100.0% 100.0% 6.14 ± 0.02 6.12 ± 0.03 -0.02 -0.85 – – 1.06
75895576 2025:355 4 1 100.0% 100.0% 100.0% 7.26 ± 0.02 7.27 ± 0.03 0.02 0.87 – – 1.51
75898968 2025:355 4 1 100.0% 100.0% 100.0% 6.84 ± 0.02 6.85 ± 0.03 0.01 0.35 – – 1.64
75899328 2025:355 5 1 100.0% 100.0% 100.0% 7.20 ± 0.02 7.20 ± 0.03 0.01 0.31 – – 0.63
75900192 2025:355 4 1 99.9% 99.9% 100.0% 8.03 ± 0.02 8.05 ± 0.03 0.02 0.90 – – 0.07
76289600 2025:355 5 1 100.0% 100.0% 100.0% 6.79 ± 0.02 6.80 ± 0.03 0.00 0.09 – – 1.98
85725216 2025:320 6 1 100.0% 100.0% 100.0% 8.81 ± 0.04 7.12 ± 0.48 -1.69 -42.13 – – 0.90
104597048 2025:320 2 1 100.0% 100.0% 100.0% 7.22 ± 0.02 7.22 ± 0.03 0.00 0.14 – – 1.09
104600464 2025:320 2 1 99.9% 99.8% 100.0% 8.59 ± 0.04 8.66 ± 0.03 0.07 1.71 – – 3.52
104604024 2025:320 3 1 100.0% 100.0% 100.0% 6.53 ± 0.02 6.51 ± 0.04 -0.02 -0.76 – – -0.14
104605080 2025:320 4 1 99.7% 99.7% 100.0% 8.24 ± 0.02 8.26 ± 0.03 0.02 0.77 – – 1.59
104606088 2025:320 4 1 99.8% 99.8% 100.0% 8.16 ± 0.02 8.17 ± 0.03 0.01 0.64 – – 1.30
112853200 2025:306 2 1 99.9% 99.5% 100.0% 9.27 ± 0.02 9.31 ± 0.04 0.04 2.15 – – 0.75
112855048 2025:306 3 1 97.4% 96.8% 100.0% 9.55 ± 0.02 9.57 ± 0.04 0.02 0.95 – – 0.77
132401928 2025:291 14 1 99.9% 99.9% 100.0% 7.30 ± 0.02 7.31 ± 0.03 0.00 0.23 – – 0.70
136971792 2025:291 4 1 100.0% 100.0% 100.0% 7.79 ± 0.02 7.80 ± 0.03 0.01 0.72 – – 1.36
137367232 2025:291 2 1 100.0% 100.0% 100.0% 7.98 ± 0.02 8.01 ± 0.03 0.03 1.51 – – 2.49
154534448 2025:299 3 2 99.9% 99.9% 100.0% 9.57 ± 0.02 9.60 ± 0.04 0.03 1.32 – – 1.18
154534888 2025:299 7 2 99.2% 99.2% 100.0% 9.16 ± 0.02 9.22 ± 0.03 0.07 3.29 – – 1.85
154535176 2025:299 7 2 99.3% 99.3% 100.0% 8.78 ± 0.02 8.82 ± 0.03 0.04 1.89 – – 0.51
154537120 2025:299 4 2 99.9% 97.4% 100.0% 9.34 ± 0.02 9.42 ± 0.04 0.09 4.27 – – 0.76
160566088 2025:320 6 1 99.8% 98.2% 100.0% 9.27 ± 0.02 9.30 ± 0.04 0.03 1.43 – – 2.01
160566832 2025:320 5 1 100.0% 100.0% 100.0% 7.92 ± 0.02 7.97 ± 0.04 0.04 2.14 – – 1.79
160566952 2025:320 4 1 100.0% 99.6% 100.0% 8.86 ± 0.02 8.89 ± 0.03 0.02 1.04 – – 1.43
160577096 2025:320 6 1 99.2% 99.2% 100.0% 8.65 ± 0.02 8.70 ± 0.04 0.05 2.65 – – 0.68
160577536 2025:320 6 1 99.9% 99.5% 99.9% 9.01 ± 0.02 9.04 ± 0.04 0.03 1.56 – – 0.96
160578912 2025:320 4 1 100.0% 100.0% 100.0% 8.11 ± 0.02 8.15 ± 0.03 0.04 1.89 – – 0.48
162269096 2025:320 3 1 96.4% 95.0% 99.7% 9.31 ± 0.02 9.30 ± 0.03 -0.00 -0.21 – – 2.12
162274568 2025:320 2 1 99.6% 99.6% 100.0% 9.32 ± 0.02 9.27 ± 0.03 -0.05 -2.54 – – 1.53
188356776 2025:306 4 1 100.0% 100.0% 100.0% 7.31 ± 0.02 7.33 ± 0.04 0.02 1.04 – – 1.11
188364872 2025:306 4 1 99.6% 99.6% 100.0% 8.86 ± 0.02 8.88 ± 0.04 0.03 1.31 – – 0.89
188365864 2025:306 4 1 99.4% 99.3% 100.0% 8.83 ± 0.02 8.86 ± 0.04 0.03 1.47 – – 1.50
248120440 2025:362 2 1 99.9% 99.9% 100.0% 7.88 ± 0.02 7.90 ± 0.03 0.03 1.43 – – 1.96
263462424 2025:334 15 1 99.7% 99.7% 100.0% 8.88 ± 0.02 8.92 ± 0.03 0.03 1.62 – – 1.19
263464240 2025:334 23 1 99.0% 98.7% 100.0% 9.57 ± 0.02 9.59 ± 0.05 0.02 1.02 – – 1.25
373817952 2026:011 140 1 99.5% 99.5% 100.0% 8.73 ± 0.02 8.74 ± 0.04 0.02 0.78 – – 1.53
374357808 2026:011 113 1 99.7% 99.7% 100.0% 8.66 ± 0.02 8.68 ± 0.04 0.02 0.90 – – 1.25
376057824 2026:011 135 1 99.7% 99.7% 100.0% 8.32 ± 0.02 8.34 ± 0.04 0.03 1.38 – – 0.54
376068632 2026:011 17 1 99.9% 99.9% 100.0% 8.74 ± 0.02 8.77 ± 0.04 0.03 1.46 – – 1.34
376070040 2026:011 129 1 99.8% 99.8% 100.0% 8.40 ± 0.02 8.42 ± 0.04 0.02 1.01 – – 0.36
398459032 2025:334 2 1 100.0% 99.9% 100.0% 7.96 ± 0.02 7.97 ± 0.03 0.01 0.49 – – 1.07
398462840 2025:334 4 1 98.5% 98.5% 100.0% 9.18 ± 0.02 9.19 ± 0.03 0.01 0.52 – – 1.27
398466568 2025:334 2 1 99.9% 99.9% 100.0% 8.58 ± 0.02 8.61 ± 0.03 0.03 1.54 – – 1.16
461512528 2025:348 2 1 100.0% 100.0% 100.0% 7.55 ± 0.02 7.55 ± 0.03 -0.00 -0.19 – – 1.21
473830528 2025:341 2 1 99.8% 99.8% 100.0% 8.50 ± 0.02 8.52 ± 0.03 0.02 0.94 – – 1.39
473831552 2025:341 2 1 98.7% 97.5% 99.7% 7.84 ± 0.05 7.87 ± 0.03 0.03 0.54 – – 3.16
473838488 2025:341 2 1 99.0% 98.7% 100.0% 7.71 ± 0.02 7.72 ± 0.03 0.02 0.81 – – 2.00
473848264 2025:341 2 1 98.1% 98.1% 99.0% 9.05 ± 0.02 9.00 ± 0.03 -0.05 -2.71 – – 0.08
475533392 2025:341 2 1 99.9% 99.9% 100.0% 8.16 ± 0.02 8.18 ± 0.03 0.02 1.02 – – -0.07
475536856 2025:341 2 1 100.0% 100.0% 100.0% 6.08 ± 0.02 6.09 ± 0.03 0.00 0.22 – – 1.35
525607136 2025:306 9 1 99.9% 99.9% 100.0% 8.64 ± 0.06 8.80 ± 0.06 0.16 2.73 – – 3.57
525731944 2025:306 4 1 100.0% 99.6% 100.0% 9.06 ± 0.02 9.09 ± 0.04 0.03 1.43 – – 3.02
525732488 2025:306 231 1 99.7% 99.7% 100.0% 8.39 ± 0.02 8.40 ± 0.03 0.02 0.81 – – 1.14
525735456 2025:306 215 1 100.0% 100.0% 100.0% 7.04 ± 0.10 6.90 ± 0.13 -0.14 -1.38 – – 3.58
525735976 2025:306 184 1 99.5% 99.5% 100.0% 8.82 ± 0.03 8.73 ± 0.18 -0.09 -3.15 – – 0.77
687084152 2025:313 6 1 99.7% 99.7% 100.0% 7.86 ± 0.02 7.88 ± 0.03 0.02 0.93 – – 0.75
687084264 2025:313 3 1 98.0% 98.0% 100.0% 9.11 ± 0.02 9.11 ± 0.03 0.00 0.20 – – 1.44
687084768 2025:313 9 1 100.0% 100.0% 100.0% 7.01 ± 0.02 7.02 ± 0.03 0.01 0.58 – – 2.12
692322648 2025:313 5 1 99.2% 99.2% 100.0% 8.45 ± 0.02 8.45 ± 0.03 0.00 0.05 – – 1.16
692336712 2025:313 6 1 99.6% 99.6% 100.0% 8.72 ± 0.02 8.76 ± 0.04 0.03 1.73 – – 0.45
692340424 2025:313 3 1 99.3% 97.2% 100.0% 9.55 ± 0.02 9.57 ± 0.05 0.02 0.88 – – 1.15
692340912 2025:313 3 1 99.2% 99.2% 100.0% 8.90 ± 0.02 8.93 ± 0.03 0.03 1.45 – – 0.68
692341456 2025:313 4 1 99.6% 98.0% 100.0% 9.10 ± 0.02 9.13 ± 0.04 0.03 1.33 – – 1.38
764020648 2025:355 2 1 98.9% 98.7% 99.9% 9.90 ± 0.02 9.84 ± 0.03 -0.06 -2.91 – – 0.68
764020960 2025:355 7 1 99.6% 99.6% 100.0% 9.11 ± 0.02 9.14 ± 0.03 0.03 1.30 – – 0.66
764024200 2025:355 2 1 99.5% 99.2% 99.9% 9.08 ± 0.02 9.10 ± 0.03 0.01 0.64 – – 0.68
819332400 2025:299 3 1 99.9% 99.7% 100.0% 7.87 ± 0.02 7.92 ± 0.03 0.04 2.17 – – 0.95
819332584 2025:299 4 1 100.0% 100.0% 100.0% 8.41 ± 0.02 8.43 ± 0.03 0.02 0.83 – – 0.28
819337480 2025:299 3 1 99.9% 99.7% 99.9% 8.27 ± 0.02 8.31 ± 0.03 0.04 1.91 – – 0.59
1096155424 2025:320 4 1 99.9% 99.9% 100.0% 8.83 ± 0.02 8.85 ± 0.03 0.02 0.81 – – 1.54
1096157872 2025:320 4 1 99.5% 99.5% 100.0% 8.51 ± 0.02 8.51 ± 0.03 0.00 0.10 – – 2.76
1096158896 2025:320 3 1 99.5% 99.5% 99.9% 8.38 ± 0.02 8.43 ± 0.04 0.05 2.52 – – 1.79
1096160128 2025:320 2 1 100.0% 100.0% 100.0% 9.32 ± 0.05 9.24 ± 0.04 -0.08 -1.58 – – 2.97
1096161400 2025:320 4 1 99.6% 99.5% 100.0% 9.27 ± 0.02 9.31 ± 0.04 0.03 1.69 – – 0.36
1096162192 2025:320 6 1 100.0% 100.0% 100.0% 7.39 ± 0.02 7.39 ± 0.03 0.00 0.18 – – 1.26
1096164600 2025:320 6 1 99.3% 99.3% 100.0% 8.72 ± 0.02 8.75 ± 0.04 0.03 1.59 – – 1.65
1096165640 2025:320 2 1 100.0% 99.3% 100.0% 9.17 ± 0.02 9.18 ± 0.03 0.01 0.50 – – 1.29
1098783024 2025:320 3 1 99.7% 99.7% 100.0% 8.29 ± 0.07 8.30 ± 0.03 0.01 0.11 – – 2.55

  • 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.