27 December 2016
⇐20161226 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161228⇒

NOAA
1 Active Region
12621

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 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 .