15 February 2017
⇐20170214 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170216⇒

NOAA
2 Active Regions
12635
12634

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 E03S29
(-51",-368") 		E55-W41
(96) 		5.9 1.4 2.0e33
2 W61S68
(325",-870") 		W39-W70
(31) 		0.8 -0.8 -2.2e33
3 W34N55
(315",842") 		W28-W50
(22) 		0.7 0.5 6.6e32
4 E32N49
(-336",792") 		E60-E17
(43) 		0.5 0.8 5.8e32
5 E20S83
(-37",-946") 		E43-W22
(65) 		0.1 -1.5 -8.9e32

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 15-Feb-2017 20:30 UT .