17 October 2010
⇐20101016 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101018⇒

NOAA
4 Active Regions
11112
11113
11115
11116

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E17N23
(-261",282") 		E26-E05
(21) 		1.2 -1.6 -4.9e32
2 E62N04
(-847",28") 		E70-E56
(14) 		0.2 -0.8 -2.0e32
3 W05N03
(76",-40") 		W01-W07
(6) 		0.1 -2.2 -3.0e31

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 17-Oct-2010 23:30 UT .