26 June 2017
⇐20170625 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170627⇒

NOAA
1 Active Region
12664

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 -444
(19",-848") 		4.5e05
(3.0) 		5.5 -6.5 -2.9e34
2 -363
(160",853") 		5.5e05
(2.9) 		6.5 -5.9 -3.2e34
3 532
(554",-102") 		2.0e03
(0.1) 		4.3 -5.3 -1.0e32

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 26-Jun-2017 23:30 UT .