9 January 2012
⇐20120108 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120110⇒

NOAA
6 Active Regions
11388
11389
11391
11392
11393
11395

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E08S25
(-120",-349") 		E13-W02
(15) 		1.1 3.7 1.0e33
2 W55S17
(763",-247") 		W50-W60
(10) 		0.2 -3.4 -6.3e32
3 W16N57
(149",849") 		W10-W22
(12) 		0.1 -1.5 -2.4e32
4 W53S28
(682",-429") 		W50-W55
(5) 		0.1 -3.3 -1.8e32

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 9-Jan-2012 22:00 UT .