13 June 2023
⇐20230612 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230614⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E01N08
(-9",123") 		E30-W24
(54) 		5.5 -2.7 -2.3e21
2 E52S20
(-699",-325") 		E64-E41
(23) 		0.8 -2.5 -5.3e20
3 E58S41
(-603",-626") 		E63-E54
(9) 		0.7 -1.1 -3.1e20
4 W58S48
(535",-708") 		W47-W72
(25) 		0.4 0.9 1.5e20
5 E33S02
(-517",-45") 		E39-E26
(13) 		0.4 -0.8 -5.2e19
6 W18S47
(203",-702") 		W11-W25
(14) 		0.2 2.1 1.1e20
7 E44N35
(-535",540") 		E47-E40
(7) 		0.2 7.1 3.0e20

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 13-Jun-2023 23:30 UT .