27 December 2016
20161226 Week Rotation Today Rotation Week 20161228

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W05N63
(37",887")
E66-W63
(129)
2.9 0.6 3.2e33
2 E22S07
(-370",-81")
E31-E04
(27)
2.7 1.3 8.4e32
3 W16S70
(93",-901")
E31-W67
(98)
0.8 -1.7 -2.8e33

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 27-Dec-2016 20:30 UT .