7 September 2013
⇐20130906 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130908⇒

NOAA
3 Active Regions
11836
11837
11838

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W13N61
(102",772") 		E21-W32
(53) 		3.7 0.5 1.6e33
2 E54N28
(-677",387") 		E72-E32
(40) 		2.6 -2.1 -4.7e33
3 E09N15
(-152",127") 		E15-W01
(16) 		0.6 -10.6 -1.3e33
4 W14N19
(216",201") 		W10-W20
(10) 		0.1 -0.9 -2.3e31

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-Sep-2013 23:35 UT .