2 August 2013
⇐20130801 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130803⇒

NOAA
7 Active Regions
11801
11806
11807
11808
11809
11810
11811

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W24N47
(265",634") 		E58-W52
(110) 		5.7 1.1 3.5e33
2 E01S42
(-6",-700") 		E22-W16
(38) 		2.1 1.3 1.6e33

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 2-Aug-2013 21:00 UT .