15 May 2024
20240514 Week Rotation Today Rotation Week 20240516



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E10S69
(-56",-871")
E22-W21
(43)
0.3 0.7 9.2e19
2 W33S36
(423",-529")
W30-W38
(8)
0.1 -0.7 -1.9e19
3 W09N48
(97",732")
W07-W10
(3)
0.1 3.3 4.3e19

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 15-May-2024 23:30 UT .