12 May 2024
20240511 Week Rotation Today Rotation Week 20240513



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W56N25
(711",429")
W42-W66
(24)
1.0 3.3 9.9e20
2 E22S44
(-260",-628")
E27-E13
(14)
0.7 -1.0 -1.5e20
3 E28S20
(-413",-293")
E31-E23
(8)
0.2 -12.2 -4.9e20
4 W25S04
(401",-18")
W20-W29
(9)
0.2 -1.2 -3.5e19
5 W09S46
(99",-654")
W05-W12
(7)
0.1 -2.0 -2.9e19

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 12-May-2024 23:30 UT .