3 January 2018
⇐20180102 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180104⇒

NOAA
0 Active Regions

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 E28N36
(-370",615") 		E54-E08
(46) 		2.5 1.4 2.1e33
2 E01N64
(-9",898") 		E67-W49
(116) 		2.1 0.7 2.8e33
3 W26S71
(143",-903") 		E63-W81
(144) 		1.6 -1.5 -6.0e33
4 E10S20
(-159",-279") 		E16-E02
(14) 		1.6 0.3 9.1e31
5 W26S23
(397",-339") 		W20-W30
(10) 		0.1 -0.9 -3.4e31

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 3-Jan-2018 20:30 UT .