9 April 2019
⇐20190408 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190410⇒

NOAA
2 Active Regions
12738
12737

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 W45S74
(189",-895") 		89
(3.1e05) 		-1.6 5.3 1.6e22
2 E26N62
(-194",885") 		E59-W02
(61) 		0.8 0.7 1.6e21
3 W35S04
(547",22") 		5
(4.0e03) 		-0.7 4.2 1.7e20
4 E08N47
(-90",767") 		E12-E04
(8) 		0.1 0.5 3.2e19
5 W29S05
(457",12") 		6
(1.2e03) 		-1.5 4.0 4.8e19

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 9-Apr-2019 19:30 UT .