7 February 2015
⇐20150206 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150208⇒

NOAA
4 Active Regions
12277
12280
12281
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 W26N46
(298",760") 		E03-W32
(35) 		3.3 0.7 2.2e33
2 W19S06
(309",9") 		W08-W28
(20) 		0.9 19.8 3.8e33

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 7-Feb-2015 22:35 UT .