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ACA Trending: Dec 2025

Click an image to enlarge it. The slopes are in Mag / day.

ACIS
Slope: -2.062e-03 STD: 6.621e-02

Slope: -1.551e-03 STD: 5.907e-02

Slope: -5.909e-03 STD: 6.766e-02
 

Slope: -1.946e-03 STD: 5.460e-02

Slope: -1.908e-03 STD: 6.098e-02

Slope: -4.545e-03 STD: 8.057e-02
 
HRCI
Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan
HRCS
Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan
IDID StringMagnitudeData Quality (%)Total Data
AverageMinMaxGoodMarginalBad
1 ACIS-1 7.251 6.496 7.904 100 0 0 51
2 ACIS-2 7.130 6.748 7.300 100 0 0 53
3 ACIS-3 7.425 6.308 7.570 100 0 0 33
4 ACIS-4 7.233 6.781 7.401 100 0 0 60
5 ACIS-5 7.235 6.768 7.426 100 0 0 110
6 ACIS-6 7.281 6.539 7.458 100 0 0 41
7 HRC-I-1 6.807 6.654 6.836 100 0 0 1
8 HRC-I-2 6.835 6.811 6.856 100 0 0 1
9 HRC-I-3 6.876 6.803 6.903 100 0 0 1
10 HRC-I-4 0.000 0.000 0.000 0 0 0 0
11 HRC-S-1 0.000 0.000 0.000 0 0 0 0
12 HRC-S-2 0.000 0.000 0.000 0 0 0 0
13 HRC-S-3 0.000 0.000 0.000 0 0 0 0
14 HRC-S-4 0.000 0.000 0.000 0 0 0 0

Level 1 Slot Trending: Dec 2025

Click an image to enlarge it. The slopes are per day.

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: 7.615e-03 STD: 1.274e-01

Slope: 7.615e-03 STD: 1.274e-01

Slope: -2.874e-05 STD: -4.610e-05

Slope: -4.610e-05 STD: 8.918e-04
1
Slope: 6.477e-03 STD: 1.293e-01

Slope: 6.477e-03 STD: 1.293e-01

Slope: -2.197e-05 STD: -2.755e-05

Slope: -2.755e-05 STD: 8.013e-04
2
Slope: 1.266e-03 STD: 8.205e-02

Slope: 1.266e-03 STD: 8.205e-02

Slope: -1.779e-05 STD: -2.270e-05

Slope: -2.270e-05 STD: 7.139e-04
3
Slope: 1.364e-03 STD: 5.276e-02

Slope: 1.364e-03 STD: 5.276e-02

Slope: -1.387e-04 STD: -4.103e-04

Slope: -4.103e-04 STD: 5.988e-03
4
Slope: 1.091e-04 STD: 1.458e-02

Slope: 1.091e-04 STD: 1.458e-02

Slope: -1.206e-04 STD: -3.350e-04

Slope: -3.350e-04 STD: 8.239e-03
5
Slope: -9.910e-06 STD: 1.744e-02

Slope: -9.910e-06 STD: 1.744e-02

Slope: -8.957e-05 STD: -2.977e-04

Slope: -2.977e-04 STD: 1.199e-02
6
Slope: -3.871e-04 STD: 4.768e-02

Slope: -3.871e-04 STD: 4.768e-02

Slope: -3.007e-05 STD: -2.646e-04

Slope: -2.646e-04 STD: 1.472e-02
7
Slope: -1.205e-04 STD: 1.421e-02

Slope: -1.205e-04 STD: 1.421e-02

Slope: 5.790e-05 STD: -1.053e-04

Slope: -1.053e-04 STD: 1.626e-02

Note

pos_err: ((ra_err*cos(dec))^2 + dec_err^2)^0.5
diff: mag_aca - mag_aca_avg
slope: slope agaist time (sec)
std: standard deviation of the data

When looking at Guide Stars

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
10.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
20.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
31.680e-051.819e-057.295e-03 1033.298e-023.724e-02459019100.000.000.00
41.825e-051.938e-056.933e-03 1033.939e-024.339e-02458991100.000.000.00
51.825e-052.016e-057.407e-03 1034.516e-024.906e-02459001100.000.000.00
61.890e-051.640e-058.159e-03 1014.993e-025.461e-02458972100.000.000.00
71.760e-051.803e-057.709e-03 1015.444e-025.975e-02458842100.000.000.00
AVG1.122e-051.152e-054.688e-03 632.774e-023.050e-0228685362.500.000.00

When Looking at FIDs

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+001.046e-01 1171.030e-021.160e-02459005100.000.000.00
10.000e+000.000e+001.005e-01 1171.093e-021.287e-02459008100.000.000.00
20.000e+000.000e+001.010e-01 1171.091e-021.318e-02459025100.000.000.00
30.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
40.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
50.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
60.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
70.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
AVG0.000e+000.000e+003.827e-02 434.018e-034.707e-0317212937.500.000.00

When looking at Monitor Stars

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
10.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
20.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
30.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
40.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
50.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
60.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
70.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
AVG0.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00

If you have any questions about this page, please contact swolk@cfa.harvard.edu.