17 December 2016
⇐20161216 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161218⇒

NOAA
1 Active Region
12618

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 E19N42
(-232",674") 		E51-W20
(71) 		9.4 0.9 4.6e33
2 E37S09
(-585",-136") 		E54-E23
(31) 		3.3 1.6 2.1e33
3 E12S04
(-197",-52") 		E19-W05
(24) 		1.5 0.2 6.9e31
4 E67S20
(-847",-324") 		E78-E57
(21) 		0.3 1.2 7.5e32
5 E21S16
(-333",-258") 		E23-E18
(5) 		0.1 -0.9 -2.5e31

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 17-Dec-2016 20:30 UT .