30 October 2015
20151029 Week Rotation Today Rotation Week 20151031



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E23N55
(-215",748")
E60-W28
(88)
8.1 0.7 4.3e33
2 E27S01
(-442",-84")
E47-E12
(35)
4.1 2.4 2.8e33
3 W30S67
(190",-911")
E34-W54
(88)
1.1 -1.1 -5.2e33
4 E42N35
(-529",511")
E47-E36
(11)
0.2 -0.9 -1.1e32

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 30-Oct-2015 13:40 UT .