24 August 2013
20130823 Week Rotation Today Rotation Week 20130825



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20N15
(318",131")
W07-W28
(21)
2.4 -1.3 -7.4e32
2 E52N35
(-612",488")
E81-E37
(44)
1.5 1.8 2.3e33
3 W32N56
(277",730")
E08-W47
(55)
1.3 -0.8 -9.0e32
4 E53S12
(-747",-262")
E56-E51
(5)
0.1 -2.6 -3.3e32
5 W35S31
(469",-564")
W31-W39
(8)
0.1 8.2 3.7e32
6 E45N14
(-651",154")
E47-E43
(4)
0.0 6.0 1.2e32
7 E47S13
(-678",-283")
E49-E45
(4)
0.0 9.4 2.5e32

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 24-Aug-2013 21:00 UT .