15 April 2017
⇐20170414 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170416⇒

NOAA
1 Active Region
12650

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 E05S23
(-82",-283") 		E29-W31
(60) 		5.7 1.0 1.2e33
2 W42S71
(211",-877") 		E11-W82
(93) 		1.5 -1.1 -4.3e33
3 W35N63
(246",884") 		E23-W68
(91) 		1.1 0.8 3.4e33

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 15-Apr-2017 19:30 UT .