21 June 2018
⇐20180620 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180622⇒

NOAA
3 Active Regions
12713
12714
12715

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 E28S18
(-426",-322") 		E65-W35
(100) 		11.3 -0.4 -1.4e21
2 W25N51
(255",715") 		E74-W45
(119) 		7.9 0.7 4.4e21
3 E13S67
(-85",-878") 		E67-W64
(131) 		1.6 -1.0 -3.8e21

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 21-Jun-2018 23:10 UT .