3 October 2012
⇐20121002 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121004⇒

NOAA
5 Active Regions
11577
11579
11582
11584
11585

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E01N50
(-7",657") 		E22-W21
(43) 		1.9 0.7 6.1e32
2 E35S12
(-543",-293") 		E45-E21
(24) 		1.6 -2.5 -1.7e33
3 E47N28
(-625",374") 		E60-E37
(23) 		0.4 -4.0 -1.1e33
4 E48S36
(-576",-616") 		E54-E43
(11) 		0.1 -4.2 -4.4e32

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 3-Oct-2012 21:00 UT .