5 June 2018
20180604 Week Rotation Today Rotation Week 20180606

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S14
(-338",-228")
E34-E03
(31)
3.0 0.1 7.9e31
2 W29N60
(226",824")
E06-W76
(82)
2.3 0.9 3.3e33
3 W23N09
(371",156")
W06-W39
(33)
1.9 -0.4 -2.1e32
4 E14S30
(-196",-474")
E20-E05
(15)
0.6 0.9 1.6e32
5 E39N70
(-206",889")
E69-E23
(46)
0.3 0.2 3.2e32
6 W48N08
(695",138")
W45-W52
(7)
0.1 -0.8 -4.2e31

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-Jun-2018 15:30 UT .