1 August 2013
⇐20130731 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130802⇒

NOAA
7 Active Regions
11801
11805
11806
11807
11808
11809
11810

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W04N45
(48",606") 		E71-W40
(111) 		5.5 1.4 3.2e33
2 E17S41
(-207",-685") 		E36-W05
(41) 		2.2 1.2 1.7e33

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 1-Aug-2013 21:00 UT .