22 January 2016
⇐20160121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160123⇒

NOAA
4 Active Regions
12486
12487
12488
12485

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 W40S61
(304",-814") 		E57-W50
(107) 		3.6 -1.4 -7.5e33
2 E28N44
(-330",732") 		E56-W02
(58) 		3.6 1.3 4.1e33
3 E57N27
(-730",486") 		E79-E45
(34) 		1.0 2.6 3.9e33
4 W60S33
(711",-496") 		W57-W65
(8) 		0.1 -1.6 -1.2e32

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 22-Jan-2016 21:35 UT .