17 July 2018
⇐20180716 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180718⇒

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Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W04N59
(31",767") 		E84-W61
(145) 		6.4 1.0 5.1e21
2 W24N07
(385",54") 		W11-W33
(22) 		1.7 2.4 1.1e21
3 E12S10
(-191",-238") 		E22-W02
(24) 		1.6 -0.2 -5.4e19
4 E47S14
(-676",-279") 		E59-E36
(23) 		0.9 -0.9 -5.5e20
5 E16S64
(-117",-876") 		E45-W02
(47) 		0.7 -0.8 -1.2e21
6 E61S05
(-825",-122") 		E70-E54
(16) 		0.3 -2.2 -9.5e20
7 E00S39
(-5",-648") 		E03-W02
(5) 		0.1 -1.0 -2.6e19

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 17-Jul-2018 23:10 UT .