2 June 2023
20230601 Week Rotation Today Rotation Week 20230603



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W35S39
(427",-589")
W04-W46
(42)
3.7 2.5 2.2e21
2 W34N10
(524",174")
W27-W40
(13)
0.8 1.3 1.9e20
3 E15S60
(-124",-814")
E23-W02
(25)
0.7 0.3 6.8e19
4 W20N17
(316",283")
W18-W23
(5)
0.1 15.4 1.5e20
5 E04N64
(-28",856")
E07-W01
(8)
0.1 1.3 2.5e19
6 E61N33
(-695",513")
E64-E57
(7)
0.0 5.3 8.9e19
7 E75S45
(-644",-670")
E80-E71
(9)
0.0 -0.6 -2.3e19

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 2-Jun-2023 23:30 UT .