29 December 2016
⇐20161228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161230⇒

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 W12S07
(194",-81") 		E02-W23
(25) 		3.5 0.9 6.3e32
2 E20N63
(-151",885") 		E66-W45
(111) 		2.8 0.8 4.5e33
3 E64S32
(-744",-498") 		E74-E55
(19) 		1.2 -0.8 -1.8e33
4 W36S73
(174",-919") 		W08-W68
(60) 		0.4 -2.0 -3.1e33
5 E55S68
(-293",-897") 		E68-E47
(21) 		0.4 -0.6 -1.1e33

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 29-Dec-2016 20:30 UT .