2 March 2012
⇐20120301 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120303⇒

NOAA
2 Active Regions
11423
11427

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E48S30
(-623",-415") 		E70-E20
(50) 		1.8 3.9 4.9e33
2 W20S25
(306",-299") 		W09-W30
(21) 		0.7 -2.1 -4.3e32
3 E14N33
(-196",627") 		E21-E06
(15) 		0.5 2.4 5.4e32
4 E21S11
(-339",-73") 		E22-E20
(2) 		0.0 -1.5 -1.3e31

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 2-Mar-2012 22:00 UT .