26 May 2024
20240525 Week Rotation Today Rotation Week 20240527



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W40S50
(395",-712")
E00-W52
(52)
2.1 1.6 1.0e21
2 W55N55
(439",786")
W30-W73
(43)
0.8 -0.2 -9.3e19
3 W07S18
(112",-281")
W04-W11
(7)
0.2 -5.5 -1.4e20
4 E36N16
(-542",281")
E39-E34
(5)
0.1 50.5 1.4e21

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 26-May-2024 23:30 UT .