15 February 2015
⇐20150214 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150216⇒

NOAA
4 Active Regions
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 E32N41
(-391",705") 		E60-E06
(54) 		4.6 2.0 8.3e33
2 E39S61
(-296",-800") 		E69-E07
(62) 		3.1 -1.0 -3.9e33
3 W48S03
(727",33") 		W38-W61
(23) 		1.5 -4.3 -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 15-Feb-2015 22:35 UT .