14 February 2013
⇐20130213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130215⇒

NOAA
2 Active Regions
11670
11671

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E42S42
(-482",-588") 		E72-E23
(49) 		0.7 -2.2 -1.1e33
2 W57S41
(612",-589") 		W50-W67
(17) 		0.3 1.6 6.7e32
3 W53S75
(199",-915") 		W32-W88
(56) 		0.3 0.4 5.9e32
4 W38N31
(510",578") 		W32-W42
(10) 		0.3 3.6 7.3e32
5 E25N03
(-414",154") 		E28-E22
(6) 		0.3 3.6 2.5e32
6 E07N32
(-103",603") 		E10-E03
(7) 		0.1 -1.1 -6.6e31

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-2013 22:00 UT .