21 January 2015
⇐20150120 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150122⇒

NOAA
7 Active Regions
12259
12265
12266
12267
12261
12263
12264

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 -432
(766",W00N47") 		82
(4.0e05) 		0.6 7.7 3.1e34
2 E14S65
(-101",-842") 		E84-W47
(131) 		5.0 -0.8 -4.8e33
3 E41N18
(-604",370") 		E45-E36
(9) 		0.3 -11.8 -2.1e33

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 21-Jan-2015 22:35 UT .