8 July 2017
⇐20170707 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170709⇒

NOAA
1 Active Region
12665

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 -286
(153",798") 		5.6e05
(5.1) 		6.5 -5.7 -3.2e34
2 196
(482",238") 		1.4e05
(4.1) 		8.3 -5.9 -8.6e33
3 -790
(-756",350") 		1.2e04
(0.1) 		5.0 -9.0 -1.1e33

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 8-Jul-2017 23:30 UT .