17 June 2012
⇐20120616 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120618⇒

NOAA
6 Active Regions
11504
11505
11506
11507
11508
11509

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15N28
(-223",425") 		E20-E09
(11) 		0.1 -3.1 -1.3e32
2 E04N27
(-54",414") 		E06-E01
(5) 		0.1 -0.9 -2.4e31

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-Jun-2012 23:00 UT .