21 September 2022
⇐20220920 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220922⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W34N12
(522",97") 		W02-W62
(60) 		7.5 0.5 7.4e20
2 E36S36
(-455",-634") 		E51-E05
(46) 		3.8 -3.7 -3.7e21
3 E02N02
(-27",-93") 		E07-W06
(13) 		0.3 1.1 4.3e19
4 W05S25
(70",-502") 		W01-W08
(7) 		0.2 -1.0 -4.2e19
5 E16S59
(-137",-872") 		E28-E05
(23) 		0.2 -0.3 -2.9e19
6 W38N31
(503",417") 		W33-W42
(9) 		0.2 -2.3 -8.8e19
7 E31N46
(-343",611") 		E35-E27
(8) 		0.1 -0.4 -5.8e18
8 E38N35
(-486",472") 		E42-E35
(7) 		0.1 -0.8 -1.1e19
9 W08S03
(132",-165") 		W05-W11
(6) 		0.0 2.6 2.0e19

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 21-Sep-2022 23:30 UT .