25 March 2015
20150324 Week Rotation Today Rotation Week 20150326



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E40S57
(-342",-752")
E49-W85
(134)
6.2 -1.6 -1.1e34
2 W59S14
(802",-175")
W54-W66
(12)
0.4 1.8 7.4e32
3 W04N55
(36",850")
E06-W09
(15)
0.3 1.0 4.7e32
4 W44S09
(664",-73")
W39-W51
(12)
0.2 5.6 6.4e32
5 E09N22
(-144",463")
E10-E08
(2)
0.0 -4.7 -6.1e31

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 25-Mar-2015 22:35 UT .