10 February 2012
⇐20120209 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120211⇒

NOAA
3 Active Regions
11415
11416
11417

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W44S75
(178",-911") 		E22-W87
(109) 		0.6 1.1 2.1e33
2 E05S28
(-79",-356") 		E12-W05
(17) 		0.6 -3.9 -5.3e32
3 W40S31
(534",-423") 		W34-W47
(13) 		0.5 5.8 1.6e33
4 W19N14
(305",331") 		W14-W23
(9) 		0.5 -20.8 -2.8e33
5 W14S07
(235",-12") 		W11-W17
(6) 		0.3 -1.3 -8.8e31
6 W07N25
(111",514") 		W05-W09
(4) 		0.0 -9.7 -1.5e32

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 10-Feb-2012 22:00 UT .