31 March 2014
20140330 Week Rotation Today Rotation Week 20140401



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E41N30
(-549",544")
E65-E26
(39)
1.3 -2.9 -2.8e33
2 E57S53
(-486",-726")
E82-E54
(28)
0.7 -0.6 -6.5e32
3 W41S65
(270",-827")
W29-W42
(13)
0.5 -0.6 -5.1e32
4 W63S59
(447",-788")
W59-W88
(29)
0.5 -0.3 -4.5e32
5 W24S00
(390",96")
W17-W34
(17)
0.4 2.2 2.4e32
6 E23N50
(-240",793")
E29-E15
(14)
0.3 0.4 1.6e32

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 31-Mar-2014 23:35 UT .