5 December 2017
⇐20171204 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171206⇒

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 W08N61
(63",852") 		E69-W67
(136) 		4.3 0.8 4.4e33
2 W47N31
(615",499") 		W32-W66
(34) 		1.3 1.6 1.7e33
3 E41N30
(-559",481") 		E61-E24
(37) 		1.3 3.3 2.7e33
4 W31S71
(168",-920") 		63
(2.0e05) 		-1.0 4.9 1.0e34
5 W34N08
(536",124") 		W32-W35
(3) 		0.0 -1.6 -2.0e31

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 5-Dec-2017 20:30 UT .