5 January 2012
⇐20120104 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120106⇒

NOAA
7 Active Regions
11386
11388
11389
11390
11391
11392
11393

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09S06
(153",-45") 		E07-W17
(24) 		2.2 -5.8 -2.3e33
2 E36S31
(-489",-455") 		E38-E28
(10) 		0.3 1.2 1.9e32
3 E33S09
(-525",-99") 		E37-E26
(11) 		0.3 -1.9 -2.0e32

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 5-Jan-2012 22:00 UT .