4 August 2012
20120803 Week Rotation Today Rotation Week 20120805



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E40N14
(-585",154")
E44-E35
(9)
0.2 -1.7 -1.3e32
2 W06N70
(34",852")
W01-W12
(11)
0.0 -3.6 -2.0e32

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 4-Aug-2012 23:00 UT .