27 June 2012
⇐20120626 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120628⇒

NOAA
4 Active Regions
11512
11513
11514
11515

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E42N11
(-628",147") 		E60-E22
(38) 		4.4 -2.3 -4.8e33
2 W34N49
(346",690") 		E01-W69
(70) 		2.5 1.0 2.0e33
3 W50S23
(669",-392") 		W47-W53
(6) 		0.1 7.5 3.9e32

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 27-Jun-2012 23:00 UT .