5 June 2017
⇐20170604 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170606⇒

NOAA
1 Active Region
12661

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 -381
(-164",843") 		3.9e05
(2.3) 		6.3 -5.6 -2.2e34
2 -163
(222",-866") 		5.6e05
(2.0) 		5.2 -7.0 -4.0e34

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-Jun-2017 23:30 UT .