19 April 2016
⇐20160418 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160420⇒

NOAA
3 Active Regions
12529
12532
12531

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 E29N31
(-401",561") 		E48-W18
(66) 		8.6 2.4 1.1e34
2 W45N32
(575",556") 		W21-W62
(41) 		3.0 2.3 6.5e33
3 W35S69
(193",-865") 		E72-W81
(153) 		2.0 -1.4 -5.9e33
4 W25N49
(261",770") 		W20-W26
(6) 		0.1 -0.5 -5.7e31

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-Apr-2016 23:43 UT .