1 September 2024
⇐20240831 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240902⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E12S37
(-157",-663") 		E21-W01
(22) 		1.4 -2.3 -7.0e20
2 E29N28
(-410",352") 		E42-E16
(26) 		0.8 7.3 1.2e21
3 W12N57
(111",724") 		E02-W20
(22) 		0.4 -0.7 -7.7e19
4 W10S19
(153",-414") 		W06-W12
(6) 		0.1 -22.9 -4.1e20
5 W52N04
(750",-5") 		W50-W55
(5) 		0.1 -7.2 -1.8e20
6 E50N53
(-444",705") 		E55-E47
(8) 		0.1 -0.8 -1.8e19
7 W48S05
(704",-160") 		W43-W52
(9) 		0.1 -4.3 -6.0e19
8 E24S47
(-265",-768") 		E27-E21
(6) 		0.1 -0.4 -6.8e18
9 E07N41
(-87",537") 		E09-E04
(5) 		0.0 3.3 2.6e19
10 W29N67
(181",827") 		W28-W33
(5) 		0.0 -1.3 -1.5e19

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-Sep-2024 23:30 UT .