15 February 2013
⇐20130214 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130216⇒

NOAA
5 Active Regions
11670
11671
11672
11673
11674

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E40S40
(-477",-550") 		E86-E05
(81) 		1.7 -2.4 -2.5e33
2 E13S04
(-217",47") 		E17-E09
(8) 		0.3 1.2 7.8e31
3 W07N31
(102",591") 		W04-W10
(6) 		0.1 -1.2 -7.3e31

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-2013 22:00 UT .