9 October 2012
⇐20121008 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121010⇒

NOAA
6 Active Regions
11582
11585
11586
11587
11588
11589

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29S11
(-462",-277") 		E46-E02
(44) 		4.0 0.6 8.5e32
2 W51S14
(726",-289") 		W42-W60
(18) 		0.8 -1.6 -1.0e33
3 E02S04
(-27",-177") 		E03-W02
(5) 		0.1 -1.4 -2.9e31

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 9-Oct-2012 21:00 UT .