5 May 2017
⇐20170504 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170506⇒

NOAA
2 Active Regions
12654
12655

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 W04S64
(30",-828") 		E81-W69
(150) 		5.2 -1.0 -6.4e33
2 W03N61
(22",861") 		E56-W43
(99) 		2.5 0.6 2.6e33
3 E16N44
(-186",700") 		E26-E07
(19) 		0.4 0.5 1.3e32
4 W43S12
(637",-145") 		W41-W45
(4) 		0.0 -1.1 -2.4e31

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 5-May-2017 23:30 UT .