5 February 2012
⇐20120204 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120206⇒

NOAA
3 Active Regions
11410
11413
11414

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27S31
(-378",-412") 		E36-E16
(20) 		1.3 6.7 3.0e33
2 W47S21
(672",-273") 		W40-W54
(14) 		0.5 -3.5 -1.1e33

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 5-Feb-2012 22:00 UT .