15 July 2017
⇐20170714 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170716⇒

NOAA
3 Active Regions
12665
12666
12667

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 -739
(-523",499") 		2.7e05
(4.1) 		8.8 -6.1 -1.6e34
2 310
(462",-482") 		6.1e04
(1.2) 		6.0 -6.7 -4.1e33
3 -19
(106",-911") 		1.2e05
(0.2) 		5.5 -6.2 -7.2e33
4 324
(357",-242") 		1.9e03
(0.1) 		4.5 -18.0 -3.4e32

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-Jul-2017 23:30 UT .