12282
12286
12287
12288
12289
12290
12284
12285
|
|||||||||||
|
|
|
|||||||||
|
Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | W36S66 (234",-838") |
E72-W56 (128) |
3.2 | -1.1 | -5.3e33 |
2 | E17S14 (-268",-120") |
E25-W09 (34) |
1.7 | 5.2 | 1.9e33 |
3 | W49N43 (537",717") |
W36-W62 (26) |
0.8 | 0.8 | 1.3e33 |
4 | W30N53 (288",835") |
W23-W37 (14) |
0.4 | 0.5 | 3.2e32 |
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 20-Feb-2015 22:35 UT . |