17 May 2015
20150516 Week Rotation Today Rotation Week 20150518



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E32N50
(-321",750")
E60-W07
(67)
1.9 0.9 2.0e33
2 W23S12
(361",-158")
W14-W37
(23)
1.8 12.2 5.8e33
3 W33S73
(148",-899")
E63-W76
(139)
0.8 -0.5 -1.6e33
4 W11S47
(123",-664")
E02-W19
(21)
0.3 -1.0 -1.7e32
5 W09S59
(75",-793")
W05-W13
(8)
0.1 -1.4 -8.0e31

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 17-May-2015 23:35 UT .