8 May 2020
20200507 Week Rotation Today Rotation Week 20200509

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W10N02
(165",88")
E29-W31
(60)
7.3 -0.1 -1.3e20
2 W14S68
(86",-861")
E52-W36
(88)
2.5 -1.1 -4.7e21
3 E05N62
(-37",868")
E39-W52
(91)
2.3 0.6 2.4e21
4 E30S44
(-340",-622")
E38-E23
(15)
0.3 -0.5 -8.1e19

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 8-May-2020 19:30 UT .