10 February 2025
20250209 Week Rotation Today Rotation Week 20250211



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29S23
(-436",-280")
E55-W24
(79)
6.7 -7.2 -8.6e21
2 W46N09
(694",223")
W29-W63
(34)
3.5 -5.4 -4.4e21
3 W27N67
(169",930")
E01-W42
(43)
0.4 -0.4 -9.8e19
4 E33S46
(-362",-634")
E36-E28
(8)
0.1 -0.5 -1.5e19
5 E21N69
(-121",941")
E30-E18
(12)
0.1 -1.3 -4.8e19
6 E04S41
(-50",-549")
E06-E02
(4)
0.0 -2.7 -1.9e19

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 10-Feb-2025 20:30 UT .