7 April 2018
⇐20180406 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180408⇒

NOAA
1 Active Region
12703

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 W07N04
(114",169") 		E24-W28
(52) 		4.0 -2.3 -1.8e33
2 W06S75
(24",-894") 		E84-W84
(168) 		1.5 -1.2 -4.1e33
3 E35N13
(-541",294") 		E45-E23
(22) 		1.0 -0.5 -2.3e32

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 7-Apr-2018 23:30 UT .