27 March 2015
20150326 Week Rotation Today Rotation Week 20150328



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E24S60
(-198",-778")
E73-W87
(160)
6.7 -1.5 -9.3e33
2 W16N20
(253",430")
W11-W20
(9)
0.2 -4.4 -3.1e32
3 W04N22
(65",469")
W01-W06
(5)
0.1 -8.7 -2.4e32

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 27-Mar-2015 22:35 UT .