Table 1 Evaluation of the intercalibration of SOHO, STEREO and SDO observations

From: A deep learning framework for instrument-to-instrument translation of solar observation data

Instrument

Method

MAE

CC

STEREO/EUVI 171 Å

baseline

18.6

0.68

STEREO/EUVI 171 Å

ITI

12.7

0.76

STEREO/EUVI 195 Å

baseline

29.0

0.97

STEREO/EUVI 195 Å

ITI

17.5

0.97

STEREO/EUVI 284 Å

baseline

20.1

0.96

STEREO/EUVI 284 Å

ITI

10.2

0.97

STEREO/EUVI 304 Å

baseline

2.1

0.91

STEREO/EUVI 304 Å

ITI

2.2

0.92

STEREO/EUVI mean

baseline

17.4

0.88

STEREO/EUVI mean

ITI

10.7

0.90

SOHO/EIT 171 Å

baseline

7.7

SOHO/EIT 171 Å

ITI

12.4

SOHO/EIT 195 Å

baseline

9.2

SOHO/EIT 195 Å

ITI

8.5

SOHO/EIT 284 Å

baseline

3.3

SOHO/EIT 284 Å

ITI

1.8

SOHO/EIT 304 Å

baseline

1.3

SOHO/EIT 304 Å

ITI

2.4

SOHO/EIT mean

baseline

5.4

SOHO/EIT mean

ITI

6.3

  1. We compare our ITI calibration with the baseline calibration, where we consider smoothed light-curves for STEREO to mitigate the different vantage points to SDO. For SOHO we compare temporally aligned observations. We compute the MAE between the calibrated and SDO light-curves and the CC between the calibrated STEREO and SDO light-curves. Bold values highlight the best performance metrics.