7 March 2012
⇐20120306 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120308⇒

NOAA
5 Active Regions
11423
11428
11429
11430
11431

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20S50
(214",-659") 		E85-W54
(139) 		5.6 2.7 8.2e33
2 W02N20
(33",436") 		E02-W05
(7) 		0.2 -11.0 -5.2e32
3 E50N39
(-579",664") 		E53-E45
(8) 		0.2 -2.6 -6.9e32

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 7-Mar-2012 22:00 UT .