16 September 2016
⇐20160915 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160917⇒

NOAA
3 Active Regions
12592
12589
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 E13S24
(-200",-486") 		E40-W29
(69) 		11.7 -0.4 -1.5e33
2 W43S34
(540",-600") 		W26-W59
(33) 		1.2 -1.0 -1.2e33
3 E05S63
(-41",-895") 		E52-W37
(89) 		1.1 -0.8 -2.4e33
4 E10N79
(-33",905") 		E82-W55
(137) 		0.8 0.7 1.6e33
5 W34N20
(508",235") 		W27-W40
(13) 		0.5 -1.6 -2.9e32
6 W06S47
(73",-774") 		W03-W10
(7) 		0.1 -0.8 -3.8e31

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 16-Sep-2016 20:30 UT .