2 January 2013
20130101 Week Rotation Today Rotation Week 20130103



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W30N46
(337",739")
W10-W49
(39)
1.8 -0.5 -8.6e32
2 E25N40
(-313",670")
E30-E14
(16)
0.8 -0.4 -2.2e32
3 E50N26
(-676",462")
E72-E33
(39)
0.7 -4.9 -3.5e33
4 E25N02
(-414",90")
E30-E19
(11)
0.6 -2.4 -4.2e32
5 E19S10
(-317",-123")
E21-E18
(3)
0.0 -2.7 -2.7e31

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 2-Jan-2013 22:00 UT .