27 May 2023
20230526 Week Rotation Today Rotation Week 20230528



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E43S39
(-498",-589")
E59-E17
(42)
2.4 3.3 2.1e21
2 W27N38
(341",592")
W12-W39
(27)
1.2 -2.8 -7.1e20
3 E53N07
(-751",131")
E60-E46
(14)
0.7 1.6 2.9e20
4 W11S04
(174",-45")
W08-W13
(5)
0.1 2.1 2.9e19
5 W30N14
(464",250")
W29-W32
(3)
0.0 -3.3 -2.7e19

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-2023 23:30 UT .