10 September 2013
⇐20130909 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130911⇒

NOAA
1 Active Region
11838

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E23N31
(-316",387") 		E51-W09
(60) 		5.2 -3.7 -6.3e33
2 W39N59
(307",761") 		W15-W57
(42) 		1.4 0.4 6.1e32
3 E14N12
(-218",86") 		E17-E09
(8) 		0.2 -2.6 -1.2e32
4 W36N15
(538",145") 		W31-W40
(9) 		0.2 -12.9 -7.3e32
5 W31N33
(412",424") 		W28-W34
(6) 		0.0 5.4 7.8e31

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-Sep-2013 23:35 UT .