16 February 2014
20140215 Week Rotation Today Rotation Week 20140217

NOAA
6 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E03N39
(-37",703")
E47-W46
(93)
6.0 1.1 3.6e33
2 W52S56
(424",-762")
E22-W87
(109)
3.0 -0.4 -2.0e33

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 16-Feb-2014 20:35 UT .