27 September 2022
⇐20220926 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220928⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29N03
(-465",-45") 		E44-E09
(35) 		4.1 1.4 9.9e20
2 E10N28
(-149",343") 		E22-W09
(31) 		3.6 1.7 1.0e21
3 E37N63
(-256",810") 		E52-W01
(53) 		1.5 0.5 2.3e20
4 E49N26
(-646",355") 		E58-E46
(12) 		0.5 3.3 3.6e20
5 E37S14
(-556",-313") 		E45-E27
(18) 		0.3 -0.9 -5.5e19
6 W53S34
(628",-596") 		W45-W68
(23) 		0.3 -2.2 -2.5e20
7 E25N83
(-49",931") 		E52-W41
(93) 		0.1 1.2 9.6e19
8 E06S69
(-38",-928") 		E12-W06
(18) 		0.1 0.3 2.1e19
9 W05N42
(67",553") 		W03-W08
(5) 		0.0 -2.0 -1.4e19

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 27-Sep-2022 23:30 UT .