14 June 2018
20180613 Week Rotation Today Rotation Week 20180615

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E04N30
(-59",460")
E18-W11
(29)
3.2 0.7 6.6e20
2 E25N64
(-175",840")
E67-W58
(125)
2.9 1.1 5.5e21
3 E04S28
(-55",-453")
E06-E00
(6)
0.1 -0.7 -2.3e19
4 E26S74
(-112",-913")
E50-E12
(38)
0.1 -1.6 -1.0e21

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 14-Jun-2018 23:10 UT .