30 December 2016
⇐20161229 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161231⇒

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 E53S34
(-647",-517") 		E59-E32
(27) 		3.3 -1.2 -4.0e33
2 E06N61
(-52",879") 		E66-W69
(135) 		3.0 0.8 3.7e33
3 W23S08
(375",-94") 		W12-W34
(22) 		2.9 1.0 7.3e32
4 E49S68
(-278",-890") 		E80-W06
(86) 		1.1 -1.0 -3.7e33
5 E57N11
(-808",211") 		E66-E49
(17) 		0.6 -1.1 -7.1e32

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 30-Dec-2016 20:30 UT .