5 June 2015
20150604 Week Rotation Today Rotation Week 20150606

NOAA
7 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E06S26
(-84",-411")
E21-W14
(35)
2.7 -5.2 -3.9e33
2 E43S61
(-313",-825")
E74-E47
(27)
0.9 -1.4 -3.0e33
3 W16S15
(244",-249")
W13-W18
(5)
0.1 -5.8 -1.4e32

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-2015 23:35 UT .