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ACA Trending: Jul 2026

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

ACIS
Slope: -1.299e-03 STD: 5.057e-02

Slope: -1.568e-04 STD: 5.685e-02

Slope: 6.780e-04 STD: 5.789e-02
 

Slope: -6.997e-04 STD: 3.935e-02

Slope: -9.678e-04 STD: 4.291e-02

Slope: 1.265e-04 STD: 5.580e-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 7.222 5.486 7.348 100 0 0 59
2 ACIS-2 7.078 6.337 7.282 100 0 0 54
3 ACIS-3 7.383 6.369 7.699 100 0 0 44
4 ACIS-4 7.179 6.325 7.309 100 0 0 71
5 ACIS-5 7.187 5.231 7.326 98 0 1 93
6 ACIS-6 7.254 6.998 7.393 100 0 0 30
7 HRC-I-1 0.000 0.000 0.000 0 0 0 0
8 HRC-I-2 0.000 0.000 0.000 0 0 0 0
9 HRC-I-3 0.000 0.000 0.000 0 0 0 0
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: Jul 2026

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

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: 6.107e-03 STD: 7.999e-02

Slope: 6.107e-03 STD: 7.999e-02

Slope: -1.046e-05 STD: -1.913e-05

Slope: -1.913e-05 STD: 8.379e-04
1
Slope: 3.431e-03 STD: 5.354e-02

Slope: 3.431e-03 STD: 5.354e-02

Slope: -1.779e-05 STD: -2.905e-05

Slope: -2.905e-05 STD: 1.167e-03
2
Slope: 5.170e-03 STD: 6.602e-02

Slope: 5.170e-03 STD: 6.602e-02

Slope: -5.245e-06 STD: -8.498e-06

Slope: -8.498e-06 STD: 7.899e-04
3
Slope: -7.384e-04 STD: 2.309e-02

Slope: -7.384e-04 STD: 2.309e-02

Slope: 1.389e-04 STD: 2.136e-04

Slope: 2.136e-04 STD: 7.263e-03
4
Slope: 9.982e-05 STD: 2.875e-02

Slope: 9.982e-05 STD: 2.875e-02

Slope: 7.931e-05 STD: 1.117e-04

Slope: 1.117e-04 STD: 9.338e-03
5
Slope: 2.151e-04 STD: 1.790e-02

Slope: 2.151e-04 STD: 1.790e-02

Slope: 8.690e-05 STD: 1.188e-04

Slope: 1.188e-04 STD: 1.088e-02
6
Slope: -1.139e-04 STD: 1.557e-02

Slope: -1.139e-04 STD: 1.557e-02

Slope: 1.334e-04 STD: 1.268e-04

Slope: 1.268e-04 STD: 1.116e-02
7
Slope: -1.071e-04 STD: 3.078e-02

Slope: -1.071e-04 STD: 3.078e-02

Slope: 3.972e-05 STD: 1.634e-04

Slope: 1.634e-04 STD: 1.568e-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
31.415e-052.095e-056.031e-03 1123.282e-023.184e-02456381100.000.000.00
41.228e-052.070e-056.657e-03 1123.855e-023.813e-02456365100.000.000.00
51.308e-051.953e-056.524e-03 1124.358e-024.407e-02456352100.000.000.00
61.397e-052.058e-057.149e-03 1124.781e-024.823e-02456372100.000.000.00
71.456e-051.615e-058.200e-03 1115.202e-025.211e-02456346100.000.000.00
AVG8.505e-061.224e-054.320e-03 692.685e-022.680e-0228522762.500.000.00

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+001.089e-01 1171.001e-021.153e-02456384100.000.000.00
10.000e+000.000e+001.015e-01 1171.111e-021.350e-02456384100.000.000.00
20.000e+000.000e+001.059e-01 1171.078e-021.316e-0245310699.150.000.85
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+003.954e-02 433.988e-034.774e-0317073437.390.000.11

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.