13 July 2017
⇐20170712 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170714⇒

NOAA
2 Active Regions
12665
12666

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 -113
(123",-549") 		1.0e05
(2.7) 		6.0 -7.8 -8.1e33
2 -825
(-694",506") 		2.2e05
(1.3) 		8.4 -5.1 -1.1e34
3 -208
(-94",-907") 		1.7e05
(0.4) 		5.7 -6.4 -1.1e34
4 -187
(-136",-244") 		6.5e03
(0.3) 		4.5 -9.4 -6.1e32

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 13-Jul-2017 23:30 UT .