3 November 2018
20181102 Week Rotation Today Rotation Week 20181104

NOAA
Active Regions
No Data

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19S02
(313",-94")
E21-W44
(65)
12.8 0.7 2.1e21
2 E19N65
(-130",849")
E75-W74
(149)
3.9 1.1 6.1e21
3 E50N08
(-733",88")
E55-E44
(11)
0.3 -1.5 -3.0e20
4 E23S28
(-330",-505")
E24-E21
(3)
0.1 -0.6 -3.1e19

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 some time.