8 September 2013
⇐20130907 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130909⇒

NOAA
3 Active Regions
11836
11837
11838

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E43N29
(-567",384") 		E68-E19
(49) 		3.8 -2.8 -5.8e33
2 W24N59
(199",759") 		E21-W41
(62) 		3.6 0.3 8.7e32
3 W09N14
(141",117") 		W01-W16
(15) 		0.4 -7.6 -6.0e32
4 E13N25
(-198",299") 		E15-E11
(4) 		0.1 -4.8 -7.2e31

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 8-Sep-2013 23:35 UT .