6 April 2012
⇐20120405 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120407⇒

NOAA
2 Active Regions
11450
11452

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W23S72
(116",-876") 		E56-W38
(94) 		1.5 1.3 3.8e33
2 E54N06
(-776",155") 		E61-E48
(13) 		0.9 -2.2 -1.6e33
3 E47S30
(-613",-409") 		E52-E35
(17) 		0.8 -1.1 -5.8e32
4 E49S15
(-697",-172") 		E54-E43
(11) 		0.2 -2.4 -2.2e32

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 6-Apr-2012 23:00 UT .