8 October 2015
⇐20151007 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151009⇒

NOAA
2 Active Regions
12427
12429

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 E22N48
(-247",639") 		E67-W83
(150) 		18.8 1.0 1.0e34
2 W39N03
(601",-34") 		W23-W58
(35) 		4.2 2.5 4.2e33
3 W06N09
(101",52") 		W00-W10
(10) 		0.4 1.4 8.7e31

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-2015 18:30 UT .