16 January 2012
20120115 Week Rotation Today Rotation Week 20120117



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E23S47
(-261",-660")
E35-E08
(27)
0.8 -1.2 -5.0e32
2 W32S29
(449",-412")
W29-W34
(5)
0.1 -9.3 -2.9e32
3 W50N09
(736",196")
W47-W53
(6)
0.1 -3.9 -2.0e32

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 16-Jan-2012 22:00 UT .