28 June 2013
⇐20130627 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130629⇒

NOAA
7 Active Regions
11775
11777
11778
11779
11780
11781
11782

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29N10
(457",133") 		W15-W40
(25) 		1.9 4.3 2.5e33
2 E58N43
(-580",633") 		E77-E55
(22) 		1.7 0.3 9.0e32
3 W24N57
(208",769") 		W05-W42
(37) 		0.4 -0.4 -1.4e32

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 28-Jun-2013 21:00 UT .