19 May 2016
⇐20160518 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160520⇒

NOAA
2 Active Regions
12544
12546

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 W23N42
(276",662") 		E39-W65
(104) 		11.8 -0.0 -7.0e31
2 W05S15
(86",-215") 		E03-W11
(14) 		0.9 3.2 5.9e32
3 W27S06
(436",-67") 		W23-W31
(8) 		0.3 -12.0 -9.2e32
4 W17S12
(273",-166") 		W13-W21
(8) 		0.2 -1.9 -7.6e31
5 W32N08
(502",156") 		W30-W35
(5) 		0.1 -5.2 -1.3e32

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 19-May-2016 23:17 UT .