26 December 2018
⇐20181225 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181227⇒

NOAA
0 Active Regions

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19N08
(317",169") 		E09-W37
(46) 		10.8 0.6 1.5e21
2 E18S19
(-291",-282") 		E30-W01
(31) 		3.4 0.1 7.1e19
3 E14N60
(-123",862") 		E50-W66
(116) 		2.8 0.9 3.6e21
4 W36S70
(198",-904") 		E58-W74
(132) 		1.4 -1.2 -5.0e21

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 26-Dec-2018 20:30 UT .