16 February 2012
⇐20120215 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120217⇒

NOAA
3 Active Regions
11416
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 W05S07
(89",-3") 		E13-W19
(32) 		3.2 -2.1 -1.1e33
2 W26S39
(332",-534") 		W04-W53
(49) 		2.1 -2.1 -1.9e33

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 16-Feb-2012 22:00 UT .