Table 1.
Summary of the far-side active regions detected in the period 2018 November–2019 May.
| Name | Date of first detection | Number of days with | AR number | STEREO | |
|---|---|---|---|---|---|
| signal above threshold | |||||
| (NN top, | (NN top, | (NN top, | (previous rot. top, | ||
| FS bottom) | FS bottom) | FS bottom) | later rot. bottom) | ||
| NN-2018-001 | 2018/11/23.0 | 1.0 | – | Out of | |
| – | – | FoV | |||
| NN-2018-002 | 2018/12/08.0 | 2.0 | – | Confirmed | |
| – | – | ||||
| NN-2018-003 | 2018/12/18.5 | 0.5 | – | Confirmed | |
| – | – | ||||
| NN-2019-001 | 2019/01/16.5 | 0.5 | – | Confirmed | |
| – | – | ||||
| NN-2019-002 | 2019/01/26.0 | 1.5 | – | Out of | |
| – | – | FoV | |||
| NN-2019-003 | 2019/02/04.5 | 5.5 | 12733 | Confirmed | |
| FS-2019-001 | 2019/02/06.5 | 4.5 | – | ||
| NN-2019-004 | 2019/03/28.5 | 10.5 | 12736 | Confirmed | |
| FS-2019-001 | 2019/03/29.0 | 7.5 | 12738 | ||
| NN-2019-005 | 2019/04/21.5 | 0.5 | – | Confirmed | |
| – | – | ||||
| NN-2019-006 | 2019/04/28.5 | 0.5 | 12738 | Confirmed | |
| – | 12 740 | – | |||
| NN-2019-007 | 2019/04/29.0 | 7 | 12739 | Confirmed | |
| FS-2019-002 | 2019/05/01.0 | 2.5 | 12741 | ||
| NN-2019-008 | 2019/05/09.5 | 0.5 | Out of | ||
| – | – | – | FoV |
Notes. The first column shows the label assigned to the far-side active region, the second column is the date of the first detection, the third column is the number of days when the signal is detected with a value above the chosen thresholds, the fourth column is the NOAA number assigned to the active region in the previous or the following rotation, and the last column indicates the presence or absence of the far-side active region in the FoV of STEREO-A. Each detected far-side active region is indicated in two rows, the top one with the data from the detection by the neural network (noted as NN-yyyy-id) and the bottom one with the data from the detection by the traditional method (when available, noted as FS-yyyy-id).
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