2 January 2012
⇐20120101 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120103⇒

NOAA
5 Active Regions
11386
11388
11389
11390
11391

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W56S56
(453",-792") 		E24-W66
(90) 		4.1 0.8 7.9e33
2 E34N01
(-553",53") 		E47-E22
(25) 		1.5 -7.2 -3.8e33

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-Jan-2012 22:00 UT .