3 June 2017
⇐20170602 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170604⇒

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 -343
(60",-867") 		4.5e05
(2.4) 		5.6 -6.9 -3.1e34
2 -408
(-126",855") 		3.4e05
(1.9) 		6.1 -5.8 -1.9e34

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 3-Jun-2017 23:30 UT .