1 January 2012
⇐20111231 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120102⇒

NOAA
5 Active Regions
11384
11386
11388
11389
11390

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W50S53
(454",-756") 		E60-W72
(132) 		7.0 0.7 8.0e33
2 E42N12
(-643",236") 		E47-E37
(10) 		0.3 -13.5 -2.0e33

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 1-Jan-2012 22:00 UT .