30 June 2019
⇐20190629 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190701⇒

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Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19N69
(109",864") 		E77-W62
(139) 		2.3 1.1 1.0e21
2 E19S09
(-298",-187") 		E26-E03
(23) 		1.9 -1.5 -4.7e20
3 E26S62
(-193",-850") 		E34-E04
(30) 		0.7 -0.4 -1.2e20
4 W48S63
(319",-853") 		W55-W53
(-2) 		0.2 -1.1 -1.4e20
5 E11S35
(-150",-575") 		E14-E07
(7) 		0.1 -0.5 -1.4e19
6 W29N27
(411",387") 		W27-W30
(3) 		0.1 -0.9 -1.6e19
7 W10N34
(135",486") 		W07-W12
(5) 		0.1 -1.1 -1.6e19
8 W23S24
(337",-420") 		W21-W25
(4) 		0.1 -1.1 -1.3e19
9 W27N10
(425",124") 		W26-W28
(2) 		0.0 -1.0 -7.3e18
10 W41N22
(571",324") 		W39-W42
(3) 		0.0 -0.7 -6.1e18

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-Jun-2019 22:55 UT .