3 July 2017
⇐20170702 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170704⇒

NOAA
1 Active Region
12664

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 -544
(-136",828") 		5.8e05
(4.2) 		6.0 -5.8 -3.3e34
2 -750
(-568",122") 		1.2e05
(3.1) 		9.4 -5.8 -7.1e33
3 217
(416",-220") 		4.8e04
(1.6) 		5.4 -6.0 -2.9e33
4 -172
(177",-879") 		4.3e05
(1.4) 		5.5 -6.3 -2.7e34

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 3-Jul-2017 23:30 UT .