10 October 2012
⇐20121009 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121011⇒

NOAA
5 Active Regions
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 E15S11
(-242",-283") 		E35-W18
(53) 		5.1 0.9 1.1e33
2 E23N22
(-356",265") 		E30-E16
(14) 		0.5 -1.1 -1.5e32
3 E25N31
(-352",411") 		E29-E21
(8) 		0.2 -1.0 -7.7e31
4 E59N20
(-778",271") 		E64-E53
(11) 		0.2 -0.6 -1.2e32

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 10-Oct-2012 21:00 UT .