6 February 2015
⇐20150205 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150207⇒

NOAA
5 Active Regions
12277
12280
12281
12272
12278

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W13N45
(156",761") 		E18-W28
(46) 		4.3 0.6 2.0e33
2 W70S63
(418",-843") 		W41-W87
(46) 		0.9 -0.7 -3.0e33
3 W09N04
(158",174") 		W01-W14
(13) 		0.5 11.8 1.2e33
4 E03S09
(-54",-54") 		E06-W04
(10) 		0.3 60.2 3.4e33
5 W30S81
(79",-940") 		W48-W34
(-14) 		0.1 -0.7 -2.2e32

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 6-Feb-2015 22:35 UT .