8 January 2017
⇐20170107 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170109⇒

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 W54S43
(576",-642") 		W24-W75
(51) 		2.6 -1.4 -4.9e33
5 -271
(-144",E08S04") 		23
(3.0e04) 		1.5 8.5 2.6e33
7 W38S69
(210",-894") 		E36-W72
(108) 		1.5 -1.1 -4.4e33

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-Jan-2017 20:30 UT .