20 June 2018
⇐20180619 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180621⇒

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 W04N50
(46",711") 		E50-W69
(119) 		10.0 0.7 4.2e33
2 E00S20
(-1",-349") 		E19-W19
(38) 		3.3 -0.0 -1.8e31
3 E24S69
(-141",-889") 		E67-W62
(129) 		1.2 -1.0 -4.0e33
4 E57S05
(-794",-102") 		E78-E42
(36) 		0.9 -1.1 -9.8e32
5 E21S39
(-265",-615") 		E33-E00
(33) 		0.7 -0.5 -2.0e32
6 E34S32
(-445",-520") 		E37-E31
(6) 		0.1 -1.0 -7.3e31

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-2018 23:10 UT .