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ACA Trending: Jan 2026

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

ACIS
Slope: -2.567e-03 STD: 4.411e-02

Slope: 3.056e-03 STD: 4.705e-02

Slope: -2.487e-03 STD: 4.016e-02
 

Slope: 2.426e-03 STD: 4.397e-02

Slope: -5.075e-04 STD: 4.109e-02

Slope: 3.114e-03 STD: 6.696e-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 7.217 6.780 7.309 100 0 0 11
2 ACIS-2 7.103 6.545 7.219 100 0 0 28
3 ACIS-3 7.421 7.284 7.522 100 0 0 7
4 ACIS-4 7.226 6.939 7.347 100 0 0 28
5 ACIS-5 7.222 6.495 7.330 100 0 0 36
6 ACIS-6 7.309 7.105 7.453 100 0 0 13
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: Jan 2026

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

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: -6.232e-03 STD: 5.488e-02

Slope: -6.232e-03 STD: 5.488e-02

Slope: 2.273e-05 STD: 5.154e-05

Slope: 5.154e-05 STD: 8.147e-04
1
Slope: 4.038e-03 STD: 4.421e-02

Slope: 4.038e-03 STD: 4.421e-02

Slope: 1.563e-05 STD: 8.708e-06

Slope: 8.708e-06 STD: 5.868e-04
2
Slope: -3.234e-03 STD: 5.829e-02

Slope: -3.234e-03 STD: 5.829e-02

Slope: -2.634e-06 STD: 7.494e-05

Slope: 7.494e-05 STD: 6.007e-04
3
Slope: -3.112e-04 STD: 1.744e-02

Slope: -3.112e-04 STD: 1.744e-02

Slope: 7.788e-05 STD: -3.365e-05

Slope: -3.365e-05 STD: 7.423e-03
4
Slope: 1.051e-03 STD: 1.816e-02

Slope: 1.051e-03 STD: 1.816e-02

Slope: -2.391e-05 STD: 7.646e-05

Slope: 7.646e-05 STD: 7.993e-03
5
Slope: -5.725e-04 STD: 1.197e-02

Slope: -5.725e-04 STD: 1.197e-02

Slope: 4.835e-04 STD: 6.618e-05

Slope: 6.618e-05 STD: 1.197e-02
6
Slope: -1.002e-04 STD: 2.842e-02

Slope: -1.002e-04 STD: 2.842e-02

Slope: 2.271e-04 STD: 2.531e-04

Slope: 2.531e-04 STD: 1.587e-02
7
Slope: -3.514e-05 STD: 1.343e-02

Slope: -3.514e-05 STD: 1.343e-02

Slope: 1.774e-04 STD: 1.859e-05

Slope: 1.859e-05 STD: 1.752e-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
32.373e-053.029e-051.203e-02 333.311e-023.399e-02170385100.000.000.00
42.816e-052.940e-051.377e-02 333.840e-023.934e-02170363100.000.000.00
52.199e-053.127e-051.344e-02 334.484e-024.714e-02170383100.000.000.00
62.827e-052.493e-051.386e-02 335.176e-025.367e-02170345100.000.000.00
72.879e-053.170e-051.444e-02 315.503e-025.872e-02170345100.000.000.00
AVG1.637e-051.845e-058.444e-03 202.789e-022.911e-0210647762.500.000.00

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+001.827e-01 411.003e-021.137e-02170390100.000.000.00
10.000e+000.000e+001.747e-01 411.078e-021.267e-02170391100.000.000.00
20.000e+000.000e+001.708e-01 411.099e-021.313e-02170383100.000.000.00
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+006.603e-02 153.974e-034.645e-036389537.500.000.00

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.