9 June 2018
⇐20180608 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180610⇒

NOAA
0 Active Regions

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 E09S19
(-134",-321") 		E20-W10
(30) 		2.6 -0.5 -3.0e20
2 W13S03
(207",-60") 		W09-W16
(7) 		0.2 -1.7 -6.3e19
3 W40S29
(531",-467") 		W37-W44
(7) 		0.1 -0.4 -2.1e19
4 W05S26
(70",-415") 		W02-W07
(5) 		0.0 -0.8 -1.2e19

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 9-Jun-2018 23:10 UT .