5 March 2017
⇐20170304 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170306⇒

NOAA
3 Active Regions
12640
12641
12642

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 W19S66
(129",-828") 		E88-W58
(146) 		5.4 -1.4 -8.8e33
2 E38N26
(-537",502") 		E49-E25
(24) 		0.8 0.8 4.1e32
3 W72S36
(744",-538") 		W67-W81
(14) 		0.1 -0.8 -3.2e32

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-Mar-2017 20:30 UT .