8 August 2018
⇐20180807 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180809⇒

NOAA
1 Active Region
12717

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 W06N70
(31",847") 		E81-W64
(145) 		3.6 0.9 4.6e21
2 E05S07
(-84",-211") 		E15-W12
(27) 		2.9 -1.5 -8.3e20
3 E11S69
(-63",-914") 		E22-W05
(27) 		0.1 -1.0 -7.3e20

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 8-Aug-2018 23:10 UT .