4 February 2015
20150203 Week Rotation Today Rotation Week 20150205



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W56S58
(435",-786")
E03-W78
(81)
4.6 -1.5 -1.4e34
2 E20N42
(-251",727")
E32-W01
(33)
4.5 0.4 1.4e33
3 E18N06
(-300",204")
E24-E09
(15)
0.7 10.7 1.8e33
4 E28S03
(-451",51")
E30-E25
(5)
0.1 14.9 5.5e32
5 E54N37
(-628",636")
E59-E50
(9)
0.1 -0.8 -8.8e31

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-Feb-2015 22:35 UT .