27 August 2013
⇐20130826 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130828⇒

NOAA
6 Active Regions
11823
11828
11835
11827
11833
11834

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E10N26
(-147",316") 		E36-W19
(55) 		7.3 1.7 2.9e33
2 E16N65
(-106",810") 		E19-E06
(13) 		0.2 -0.6 -1.1e32
3 E28S48
(-303",-766") 		E35-E21
(14) 		0.2 -1.1 -2.0e32
4 E16S21
(-249",-439") 		E18-E15
(3) 		0.1 -12.9 -2.9e32

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 27-Aug-2013 10:42 UT .