12 September 2019
⇐20190911 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190913⇒

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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15S25
(-221",-510") 		E29-W10
(39) 		4.3 -0.3 -2.7e20
2 E05N69
(-30",844") 		E79-W78
(157) 		3.7 1.6 1.9e21
3 W10N16
(165",148") 		E01-W18
(19) 		2.3 -0.2 -8.6e19
4 E35S53
(-325",-819") 		E51-E22
(29) 		0.6 -0.4 -1.0e20
5 E09S58
(-79",-869") 		E22-W02
(24) 		0.4 -0.7 -1.2e20
6 E34N23
(-486",283") 		E38-E30
(8) 		0.1 -1.2 -1.9e19
7 E48S61
(-348",-864") 		E59-E40
(19) 		0.1 -0.3 -1.1e19
8 E20S03
(-325",-165") 		E21-E18
(3) 		0.0 -1.3 -8.1e18
9 W32S68
(194",-913") 		W25-W42
(17) 		0.0 -0.6 -1.7e19

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 12-Sep-2019 23:40 UT .