16 August 2018
⇐20180815 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180817⇒

NOAA
1 Active Region
12718

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 E32S23
(-458",-459") 		E60-W06
(66) 		10.1 -0.7 -3.6e21
2 W34N65
(225",817") 		E91-W58
(149) 		3.4 1.3 6.2e21
3 E15S55
(-141",-835") 		E29-W15
(44) 		1.8 -0.4 -1.0e21
4 W60N33
(690",466") 		W58-W63
(5) 		0.1 1.4 2.6e20
5 E52S59
(-384",-843") 		E63-E52
(11) 		0.1 -1.7 -6.2e20

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 16-Aug-2018 23:10 UT .