12 March 2015
⇐20150311 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150313⇒

NOAA
3 Active Regions
12297
12298
12296

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E63S58
(-451",-786") 		E85-W19
(104) 		2.3 -1.4 -8.1e33
2 E52N29
(-664",527") 		E75-E34
(41) 		1.4 2.2 3.8e33
3 W27N00
(437",116") 		W20-W36
(16) 		1.2 -3.4 -1.2e33

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 12-Mar-2015 22:35 UT .