27 June 2018
⇐20180626 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180628⇒

NOAA
1 Active Region
12715

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 W22S60
(177",-837") 		E42-W34
(76) 		2.6 -0.8 -3.5e21
2 W26S22
(388",-387") 		W24-W29
(5) 		0.1 -0.8 -2.2e19

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 27-Jun-2018 13:30 UT .