26 November 2017
⇐20171125 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171127⇒

NOAA
2 Active Regions
12689
12687

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 E09S47
(-103",-732") 		E68-W22
(90) 		5.4 -1.6 -5.5e33
2 W36N09
(568",135") 		W32-W42
(10) 		0.2 -2.7 -2.0e32
3 W03S11
(54",-217") 		E03-W05
(8) 		0.2 -1.2 -3.8e31
4 E74N29
(-816",468") 		E82-E70
(12) 		0.0 -0.5 -1.1e32

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 26-Nov-2017 20:30 UT .