9 March 2018
⇐20180308 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180310⇒

NOAA
0 Active Regions

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 E38N11
(-587",273") 		E68-E06
(62) 		3.3 -1.8 -2.7e33
2 W50N56
(412",840") 		E25-W76
(101) 		2.7 0.7 9.8e33
3 W02S73
(9",-882") 		E60-W78
(138) 		2.1 -0.9 -3.2e33
4 W41N20
(600",408") 		W39-W44
(5) 		0.0 -0.8 -2.4e31

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 9-Mar-2018 20:30 UT .