7 October 2012
⇐20121006 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121008⇒

NOAA
4 Active Regions
11579
11582
11585
11586

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W24S15
(381",-340") 		W13-W36
(23) 		2.2 -2.1 -1.5e33
2 E54S11
(-762",-251") 		E65-E46
(19) 		0.5 0.5 2.7e32
3 W10N29
(139",376") 		W03-W15
(12) 		0.3 -3.7 -2.8e32
4 W15S34
(202",-625") 		W08-W20
(12) 		0.3 -9.9 -1.2e33
5 W05S36
(61",-642") 		W01-W08
(7) 		0.1 -8.5 -5.4e32
6 E28S04
(-454",-155") 		E31-E26
(5) 		0.1 -1.0 -1.7e31

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 7-Oct-2012 21:00 UT .