8 October 2017
⇐20171007 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171009⇒

NOAA
1 Active Region
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 E15N50
(-157",672") 		E51-W28
(79) 		12.5 1.5 1.0e34
2 E15S09
(-240",-256") 		E25-W02
(27) 		2.0 -0.1 -6.1e31
3 E28S63
(-207",-894") 		E52-E16
(36) 		0.3 -0.5 -4.6e32

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-Oct-2017 23:30 UT .