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| Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
| 1 | W12N03 (198",120") |
E19-W34 (53) |
6.9 | -0.3 | -4.6e20 |
| 2 | E39S30 (-519",-419") |
E53-E16 (37) |
3.5 | -0.3 | -6.2e20 |
| 3 | E21S70 (-121",-866") |
E75-W55 (130) |
2.4 | -0.8 | -3.7e21 |
| 4 | W20N66 (133",901") |
E33-W49 (82) |
1.0 | 1.1 | 4.0e21 |
| 5 | W45S33 (567",-465") |
W30-W55 (25) |
0.8 | -0.8 | -3.9e20 |
| 6 | W41S65 (267",-837") |
W23-W58 (35) |
0.5 | -1.3 | -1.2e21 |
| 7 | E52S01 (-748",29") |
E56-E45 (11) |
0.3 | -0.5 | -1.0e20 |
| 8 | W30S37 (379",-513") |
W25-W34 (9) |
0.2 | -0.7 | -8.1e19 |
| 9 | E19S10 (-310",-88") |
E21-E17 (4) |
0.0 | -1.3 | -1.1e19 |
| 10 | E21S19 (-328",-236") |
E23-E19 (4) |
0.0 | -1.1 | -1.1e19 |
|
Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA. The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476. An extensive copy of coronal hole properties are available at: solarmonitor.org/data. The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 25-Apr-2019 22:00 UT . |
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