4 November 2017
⇐20171103 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171105⇒

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 E16N49
(-177",682") 		E49-W25
(74) 		8.3 1.9 9.0e33
2 E11S03
(-192",-110") 		E20-W05
(25) 		1.7 -0.0 -6.2e30
3 E23N02
(-385",-20") 		3
(1.3e03) 		-0.8 4.0 5.1e31

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 4-Nov-2017 20:30 UT .