27 May 2022
20220526 Week Rotation Today Rotation Week 20220528



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W40S29
(531",-448")
W11-W60
(49)
2.1 -3.9 -1.8e21
2 W01S71
(7",-892")
E49-W47
(96)
1.2 -1.0 -5.5e20
3 W36N36
(451",566")
W29-W50
(21)
0.5 -5.7 -7.5e20
4 W65S07
(856",-108")
W57-W71
(14)
0.3 -0.7 -6.6e19

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 27-May-2022 23:30 UT .