14 February 2012
⇐20120213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120215⇒

NOAA
4 Active Regions
11416
11418
11419
11420

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27S08
(-433",-28") 		E39-E16
(23) 		2.4 -2.4 -1.6e33
2 E03S40
(-36",-535") 		E26-W27
(53) 		2.2 -2.0 -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-Feb-2012 22:00 UT .