16 January 2017
⇐20170115 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170117⇒

NOAA
2 Active Regions
12625
12626

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 W08N46
(91",759") 		E50-W28
(78) 		7.2 0.7 3.8e33
2 E23S20
(-355",-257") 		E48-W09
(57) 		5.7 1.5 2.4e33
3 W51N23
(696",428") 		W42-W61
(19) 		0.4 1.3 4.7e32
4 W47S72
(222",-908") 		W71-W80
(9) 		0.3 -0.7 -8.2e32

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 16-Jan-2017 20:30 UT .