27 July 2012
⇐20120726 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120728⇒

NOAA
7 Active Regions
11526
11528
11529
11530
11531
11532
11533

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W15N07
(249",34") 		E03-W29
(32) 		3.1 -1.9 -1.2e33
2 W56N48
(528",666") 		W48-W62
(14) 		0.4 0.5 3.2e32
3 W32N06
(506",20") 		W29-W36
(7) 		0.2 -0.9 -7.3e31

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-Jul-2012 21:00 UT .