4 April 2016
⇐20160403 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160405⇒

NOAA
3 Active Regions
12526
12527
12528

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 W05S27
(72",-334") 		E15-W18
(33) 		1.0 4.9 1.1e33
2 W25S82
(58",-930") 		E56-W85
(141) 		0.4 -1.1 -2.1e33
3 W37N19
(546",399") 		W32-W41
(9) 		0.2 -2.5 -2.8e32
4 W20N32
(274",591") 		W15-W22
(7) 		0.1 -2.5 -1.2e32
5 W48N16
(681",334") 		W41-W52
(11) 		0.1 -3.3 -2.3e32
6 W31N26
(444",499") 		W29-W32
(3) 		0.0 -1.6 -4.1e31

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 4-Apr-2016 23:35 UT .