30 October 2010
⇐20101029 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101031⇒

NOAA
2 Active Regions
11117
11120

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W28S34
(376",-591") 		W23-W32
(9) 		1.4 1.2 9.2e32
2 E11N21
(-165",282") 		E17-E03
(14) 		0.5 -6.6 -7.1e32

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 30-Oct-2010 23:30 UT .