24 July 2018
⇐20180723 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180725⇒

NOAA
1 Active Region
12716

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 W02S42
(28",-697") 		E52-W34
(86) 		6.9 -0.8 -3.1e21
2 E32N59
(-252",773") 		E58-W04
(62) 		2.7 0.7 2.1e21
3 W54N70
(264",867") 		W02-W81
(79) 		1.0 1.3 4.9e21

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 24-Jul-2018 23:10 UT .