23 October 2010
⇐20101022 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101024⇒

NOAA
3 Active Regions
11113
11115
11117

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W17N15
(274",169") 		E03-W32
(35) 		4.3 -4.3 -4.3e33
2 W08N45
(96",618") 		W05-W11
(6) 		0.0 -4.8 -7.9e31

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 23-Oct-2010 23:30 UT .