14 February 2015
⇐20150213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150215⇒

NOAA
5 Active Regions
12280
12282
12283
12284
12281

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E41N39
(-497",675") 		E63-E19
(44) 		2.8 2.1 6.8e33
2 W35S02
(553",53") 		W21-W49
(28) 		2.6 -4.6 -4.2e33
3 E48S61
(-351",-804") 		E63-E25
(38) 		2.1 -0.9 -3.2e33

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 14-Feb-2015 22:35 UT .