28 September 2015
20150927 Week Rotation Today Rotation Week 20150929



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E00N37
(-3",478")
E29-W19
(48)
1.7 1.5 7.9e32
2 E35N35
(-447",475")
E45-E27
(18)
1.0 1.6 8.0e32
3 E14N12
(-226",94")
E18-E07
(11)
0.6 7.7 9.2e32
4 W17S05
(273",-199")
W14-W19
(5)
0.1 2.8 8.9e31

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-Sep-2015 18:30 UT .