3 October 2013
⇐20131002 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131004⇒

NOAA
5 Active Regions
11854
11855
11856
11857
11851

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19N58
(169",750") 		E10-W32
(42) 		1.5 0.2 2.0e32
2 E62N23
(-782",327") 		E76-E54
(22) 		0.6 -3.6 -2.7e33
3 E27S24
(-399",-480") 		E35-E21
(14) 		0.4 8.1 1.5e33
4 E42N13
(-628",133") 		E50-E36
(14) 		0.2 -1.9 -1.9e32
5 E15N60
(-121",773") 		E19-E08
(11) 		0.1 -2.0 -9.6e31

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 3-Oct-2013 23:35 UT .