14 March 2018
20180313 Week Rotation Today Rotation Week 20180315

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W28N16
(442",371")
E17-W60
(77)
7.9 -1.2 -3.6e33
2 W32S78
(102",-918")
E49-W82
(131)
0.7 -1.2 -3.2e33
3 E39S28
(-535",-366")
E47-E32
(15)
0.3 -0.5 -7.1e31

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 14-Mar-2018 20:30 UT .