3 November 2017
⇐20171102 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171104⇒

NOAA
1 Active Region
12686

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 E25N47
(-280",663") 		E58-W60
(118) 		6.7 2.2 8.8e33
2 W41S67
(249",-909") 		E09-W58
(67) 		0.6 -0.9 -3.8e33
3 E28S01
(-457",-76") 		E30-E25
(5) 		0.1 -1.0 -2.3e31

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-Nov-2017 20:30 UT .