6 October 2017
⇐20171005 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171007⇒

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 E38N35
(-486",483") 		60
(2.6e05) 		2.3 8.9 2.3e34
2 E13N71
(-70",871") 		E64-W90
(154) 		2.7 1.0 4.9e33
3 W59S25
(750",-448") 		W52-W67
(15) 		0.3 -2.5 -1.4e33
4 E44S59
(-340",-859") 		E62-E30
(32) 		0.2 -0.8 -5.5e32

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 6-Oct-2017 23:30 UT .