16 May 2017
⇐20170515 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170517⇒

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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 -673
(-424",-306") 		1.8e05
(5.2) 		5.6 -8.2 -1.4e34
2 -169
(259",838") 		4.2e05
(2.1) 		6.0 -5.6 -2.4e34
3 630
(747",-228") 		1.2e05
(1.3) 		6.9 -5.8 -6.7e33
4 -627
(-572",343") 		1.3e04
(0.2) 		5.3 -11.8 -1.5e33
5 -496
(-430",412") 		9.0e03
(0.2) 		5.3 -9.2 -8.3e32
6 -710
(-670",-541") 		2.2e04
(0.1) 		5.6 -6.1 -1.4e33
7 -634
(-604",140") 		2.6e03
(0.1) 		4.3 -6.4 -1.7e32
8 445
(474",520") 		2.3e03
(0.0) 		4.8 -6.0 -1.4e32

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 16-May-2017 23:30 UT .