1 June 2023
⇐20230531 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230602⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W26S38
(334",-571") 		E06-W46
(52) 		3.8 2.9 2.3e21
2 W20N10
(316",178") 		W11-W27
(16) 		0.8 1.4 1.9e20
3 E23S54
(-214",-763") 		E29-E06
(23) 		0.3 0.6 5.3e19
4 W06N17
(95",287") 		W02-W09
(7) 		0.1 7.5 9.1e19

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 1-Jun-2023 23:30 UT .