5 February 2014
⇐20140204 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140206⇒

NOAA
5 Active Regions
11967
11968
11969
11970
11971

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E18N39
(-235",691") 		E59-W50
(109) 		9.0 -2.3 -1.3e34
2 E40S55
(-358",-744") 		E73-W04
(77) 		3.7 -0.5 -1.7e33

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 5-Feb-2014 20:35 UT .