29 July 2016
20160728 Week Rotation Today Rotation Week 20160730

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E39N11
(-585",104")
E54-E22
(32)
2.1 -3.3 -2.9e33
2 E06S06
(-90",-195")
E10-W03
(13)
0.3 -2.1 -1.4e32
3 W45S06
(666",-162")
W40-W50
(10)
0.2 4.4 4.4e32
4 E22S11
(-350",-261")
E23-E21
(2)
0.1 -3.7 -5.7e31

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 29-Jul-2016 23:20 UT .