28 July 2012
20120727 Week Rotation Today Rotation Week 20120729



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W27N08
(421",57")
W11-W41
(30)
2.5 -1.9 -1.3e33
2 E06N20
(-88",232")
E10-E01
(9)
0.2 -54.7 -1.7e33
3 W02N18
(31",203")
E03-W05
(8)
0.1 -22.3 -2.8e32

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 28-Jul-2012 07:00 UT .