9 July 2023
⇐20230708 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230710⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E31N10
(-476",111") 		E46-E11
(35) 		2.3 -0.2 -9.6e19
2 W41S47
(424",-724") 		W30-W57
(27) 		1.0 2.2 6.9e20
3 E08N20
(-117",268") 		E13-E01
(12) 		0.5 -8.5 -6.6e20
4 E06S09
(-90",-203") 		E07-E03
(4) 		0.1 -2.9 -5.3e19

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 9-Jul-2023 23:30 UT .