7 April 2019
⇐20190406 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190408⇒

NOAA
1 Active Region
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 E01S55
(-7",-723") 		E63-W80
(143) 		10.5 -0.7 -4.3e21
2 E30S04
(-486",24") 		E40-E20
(20) 		0.5 0.9 1.5e20
3 E47S42
(-520",-592") 		E50-E43
(7) 		0.1 -1.5 -1.5e20
4 W10N29
(142",557") 		W08-W12
(4) 		0.1 -0.8 -3.0e19
5 W08N02
(135",130") 		W06-W10
(4) 		0.1 -2.1 -2.9e19
6 E19S28
(-283",-362") 		E21-E17
(4) 		0.0 -1.1 -1.3e19

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 7-Apr-2019 19:30 UT .