7 October 2017
⇐20171006 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171008⇒

NOAA
2 Active Regions
12682
12683

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 E28N49
(-295",666") 		E64-W56
(120) 		8.9 1.9 1.1e34
2 E39S62
(-285",-880") 		E52-E24
(28) 		0.3 -0.7 -7.9e32

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 7-Oct-2017 23:30 UT .