10 January 2019
⇐20190109 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190111⇒

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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 E13S62
(-106",-826") 		149
(5.7e05) 		-0.7 5.7 3.3e22
2 W20S21
(310",-291") 		E03-W39
(42) 		4.2 -0.6 -6.3e20
3 E33S26
(-484",-378") 		E50-E14
(36) 		3.1 -0.3 -3.9e20
4 E03N59
(-29",868") 		E48-W34
(82) 		2.6 1.1 3.8e21
5 W32S40
(394",-588") 		W27-W36
(9) 		0.2 -2.1 -1.8e20
6 W29S31
(400",-456") 		W27-W31
(4) 		0.1 -0.9 -2.7e19
7 W25S37
(324",-540") 		W22-W27
(5) 		0.0 -1.5 -2.9e19

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 10-Jan-2019 20:30 UT .