14 September 2013
⇐20130913 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130915⇒

NOAA
5 Active Regions
11839
11841
11842
11838
11840

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W42N33
(539",441") 		W12-W64
(52) 		2.7 -2.3 -3.6e33
2 E02S03
(-34",-173") 		E09-W06
(15) 		1.3 6.1 1.5e33

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 14-Sep-2013 23:35 UT .