7 January 2012
⇐20120106 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120108⇒

NOAA
7 Active Regions
11388
11389
11390
11391
11392
11393
11394

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29S19
(451",-266") 		W20-W36
(16) 		1.3 -1.9 -8.6e32
2 E34S23
(-505",-342") 		E40-E26
(14) 		0.7 8.3 2.4e33
3 E08S30
(-121",-436") 		E15-E00
(15) 		0.4 0.8 9.6e31
4 W41N10
(627",212") 		W37-W44
(7) 		0.1 -6.5 -3.3e32
5 W04S10
(63",-114") 		W02-W06
(4) 		0.1 -2.0 -2.0e31

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 7-Jan-2012 22:00 UT .