6 July 2017
20170705 Week Rotation Today Rotation Week 20170707

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 -373
(-1",769")
5.8e05
(7.0)
6.6 -6.0 -3.5e34
2 -372
(76",77")
1.1e05
(6.3)
9.1 -5.6 -6.2e33
3 -61
(100",-918")
1.3e05
(0.2)
4.7 -6.6 -8.6e33

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 6-Jul-2017 23:30 UT .