8 April 2020
⇐20200407 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200409⇒

NOAA
1 Active Region
12759

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 W03S09
(57",-56") 		E33-W28
(61) 		13.0 -0.4 -9.3e20
2 W11S68
(70",-844") 		E66-W60
(126) 		3.9 -0.9 -4.6e21
3 E17N58
(-149",864") 		E34-W33
(67) 		1.5 0.4 1.1e21

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 8-Apr-2020 19:30 UT .