20 June 2017
⇐20170619 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170621⇒

NOAA
2 Active Regions
12662
12663

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 -463
(-233",660") 		4.5e05
(7.7) 		8.2 -5.9 -2.7e34
2 -677
(-575",353") 		3.8e04
(0.7) 		7.0 -5.4 -2.1e33
3 -145
(-86",-901") 		8.6e04
(0.2) 		5.7 -7.3 -6.3e33
4 -262
(-200",-907") 		5.5e04
(0.1) 		4.9 -6.1 -3.4e33

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 20-Jun-2017 23:30 UT .