3 February 2014
⇐20140202 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140204⇒

NOAA
5 Active Regions
11967
11968
11970
11966
11969

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E48N30
(-627",542") 		E57-E34
(23) 		2.0 -2.7 -5.6e33
2 E25N51
(-264",811") 		E32-E17
(15) 		0.3 -0.3 -1.4e32
3 E68S54
(-528",-762") 		E84-E58
(26) 		0.3 -0.4 -3.7e32
4 E38S07
(-592",-39") 		E40-E35
(5) 		0.1 -3.4 -8.6e31

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-Feb-2014 17:00 UT .