13 April 2020
⇐20200412 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200414⇒

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Flare Forecast
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MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E12S65
(-87",-826") 		E63-W85
(148) 		4.5 -0.8 -4.2e21
2 W27S12
(429",-123") 		W01-W43
(42) 		3.7 0.0 5.3e19
3 E22N13
(-345",306") 		E41-E06
(35) 		2.7 -0.1 -4.6e19
4 E39N21
(-568",414") 		E42-E36
(6) 		0.1 -0.7 -3.2e19
5 W30N22
(447",441") 		W27-W33
(6) 		0.1 -0.7 -2.0e19
6 E41N17
(-600",348") 		E44-E38
(6) 		0.1 -1.1 -3.8e19
7 E24N35
(-325",616") 		E27-E23
(4) 		0.0 -0.5 -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 13-Apr-2020 19:30 UT .