14 February 2018
⇐20180213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180215⇒

NOAA
2 Active Regions
12699
12698

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E09N14
(-154",340") 		E31-W28
(59) 		6.3 -1.4 -2.2e33
2 W44S72
(210",-893") 		W79-W88
(9) 		0.7 -1.8 -3.8e33
3 E43S25
(-607",-333") 		E49-E38
(11) 		0.2 -1.1 -1.1e32

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-2018 20:30 UT .