20 September 2014
20140919 Week Rotation Today Rotation Week 20140921



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E04N52
(-42",676")
99
(4.3e05)
0.4 6.7 2.9e34
2 W50S51
(463",-784")
W18-W53
(35)
1.4 -0.5 -2.5e33
3 E49S10
(-709",-234")
E56-E39
(17)
0.7 28.5 1.3e34
4 E01N38
(-13",495")
E05-W04
(9)
0.1 -1.7 -4.8e31

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 20-Sep-2014 23:35 UT .