1 November 2017
⇐20171031 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171102⇒

NOAA
2 Active Regions
12686
12685

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 W35S31
(480",-553") 		W18-W43
(25) 		2.1 -2.3 -3.1e33
2 W20S64
(147",-895") 		E25-W38
(63) 		1.7 -0.8 -3.5e33
3 E50N31
(-636",457") 		E71-E29
(42) 		1.5 2.2 2.8e33
4 W04N73
(21",900") 		E81-W83
(164) 		1.5 1.2 3.9e33
5 W27S04
(437",-138") 		W22-W32
(10) 		0.2 -0.7 -3.9e31

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 1-Nov-2017 20:30 UT .