18 June 2018
⇐20180617 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180619⇒

NOAA
1 Active Region
12713

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 E20N50
(-202",715") 		E43-W52
(95) 		9.7 0.5 3.6e21
2 W10S70
(57",-895") 		E46-W56
(102) 		1.1 -1.4 -4.8e21

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 18-Jun-2018 23:10 UT .