25 June 2017
⇐20170624 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170626⇒

NOAA
2 Active Regions
12662
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 -341
(125",840") 		5.5e05
(3.6) 		6.1 -5.9 -3.3e34
2 -354
(-5",-845") 		4.2e05
(2.9) 		5.4 -6.9 -2.9e34
3 160
(389",-204") 		5.8e04
(2.0) 		6.0 -5.6 -3.2e33
4 547
(674",432") 		1.5e05
(1.4) 		6.7 -5.5 -7.9e33
5 302
(424",373") 		3.8e04
(1.0) 		7.2 -5.0 -1.9e33

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 25-Jun-2017 23:30 UT .