30 October 2022
⇐20221029 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221031⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W43N33
(546",486") 		E01-W67
(68) 		6.0 2.5 3.6e21
2 E25N01
(-410",-51") 		E40-E07
(33) 		3.5 1.3 7.5e20
3 E17N68
(-108",866") 		E34-W77
(111) 		1.5 0.3 1.9e20
4 W37S51
(362",-790") 		W24-W50
(26) 		0.6 -0.6 -1.2e20
5 W23S68
(141",-921") 		W11-W47
(36) 		0.3 -0.2 -4.1e19
6 E20N39
(-262",552") 		E24-E18
(6) 		0.1 1.6 3.8e19
7 E32S16
(-495",-333") 		E35-E29
(6) 		0.1 6.9 1.4e20
8 W24N54
(235",740") 		W20-W30
(10) 		0.1 -1.4 -2.6e19
9 E17N42
(-205",589") 		E19-E15
(4) 		0.1 2.5 3.5e19
10 E07N35
(-98",493") 		E09-E05
(4) 		0.1 0.7 6.4e18

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 30-Oct-2022 20:30 UT .