29 November 2013
⇐20131128 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131130⇒

NOAA
7 Active Regions
11903
11907
11908
11909
11910
11905
11906

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W12N59
(108",824") 		E16-W26
(42) 		1.4 0.2 3.5e32
2 E25N20
(-388",312") 		E32-E13
(19) 		0.6 -12.3 -2.4e33
3 W42N45
(460",681") 		W39-W54
(15) 		0.5 0.5 2.5e32
4 W25N26
(368",409") 		W21-W29
(8) 		0.1 2.7 1.2e32
5 E36N31
(-496",484") 		E39-E33
(6) 		0.1 -3.6 -2.3e32
6 W06S25
(94",-424") 		W03-W09
(6) 		0.1 10.1 2.3e32

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 29-Nov-2013 20:35 UT .