6 April 2020
⇐20200405 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200407⇒

NOAA
1 Active Region
12759

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 W11N02
(190",138") 		E19-W30
(49) 		5.8 -0.1 -8.2e19
2 E21S24
(-319",-298") 		E39-W01
(40) 		5.4 -0.6 -8.7e20
3 W07S66
(50",-831") 		E77-W45
(122) 		4.3 -1.0 -5.2e21
4 E35N62
(-253",883") 		E58-E19
(39) 		0.4 1.0 1.6e21
5 W27S14
(428",-138") 		W22-W32
(10) 		0.2 -0.8 -3.7e19
6 W38N18
(563",370") 		W34-W42
(8) 		0.1 -0.5 -2.8e19
7 W59S59
(420",-792") 		W49-W59
(10) 		0.1 -1.3 -2.7e20
8 E25N18
(-392",381") 		E27-E24
(3) 		0.1 -0.8 -2.0e19

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 6-Apr-2020 19:30 UT .