17 September 2016
⇐20160916 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160918⇒

NOAA
2 Active Regions
12592
12591

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 W04S25
(64",-510") 		E31-W39
(70) 		9.8 -0.6 -1.9e33
2 E42N72
(-192",876") 		E64-W62
(126) 		1.7 0.6 2.6e33
3 E04S63
(-28",-898") 		E48-W51
(99) 		1.4 -1.0 -3.7e33
4 W57S34
(659",-587") 		W43-W67
(24) 		0.5 -0.6 -6.1e32

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 17-Sep-2016 20:30 UT .