17 March 2015
⇐20150316 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150318⇒

NOAA
3 Active Regions
12297
12299
12301

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E06S57
(-55",-737") 		E86-W41
(127) 		9.7 -1.4 -8.6e33
2 W09N41
(111",721") 		E35-W33
(68) 		3.5 1.6 3.5e33

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 17-Mar-2015 22:35 UT .