5 July 2012
20120704 Week Rotation Today Rotation Week 20120706

NOAA
6 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29N29
(-402",420")
E52-E11
(41)
1.9 1.8 1.3e33
2 E41S28
(-551",-483")
E57-E27
(30)
0.7 5.6 2.9e33
3 W54N21
(718",301")
W42-W69
(27)
0.7 -6.2 -3.8e33
4 W33N32
(434",465")
W28-W36
(8)
0.1 -4.0 -1.6e32
5 E26N12
(-399",139")
E28-E23
(5)
0.1 11.8 2.6e32
6 E28S14
(-429",-278")
E30-E26
(4)
0.1 -2.8 -5.9e31
7 W40N30
(529",431")
W39-W42
(3)
0.0 -5.0 -1.1e32
8 E19N07
(-298",56")
E21-E16
(5)
0.0 -2.9 -2.6e31

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 5-Jul-2012 23:00 UT .