5 October 2017
⇐20171004 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171006⇒

NOAA
2 Active Regions
12682
12683

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 E47N33
(-588",456") 		E73-E21
(52) 		3.0 2.8 5.7e33
2 W41S24
(574",-457") 		W30-W48
(18) 		1.4 -2.1 -1.9e33
3 E57N72
(-244",891") 		E86-W33
(119) 		1.0 0.8 3.4e33
4 W50N70
(255",871") 		W92-W90
(-2) 		0.7 1.2 2.4e33
5 W30S68
(177",-919") 		W11-W48
(37) 		0.2 -0.6 -8.2e32

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 5-Oct-2017 23:30 UT .