2 October 2012
⇐20121001 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121003⇒

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 E20N49
(-216",655") 		E35-W09
(44) 		3.1 0.7 1.1e33
2 E51S10
(-731",-238") 		E59-E42
(17) 		0.7 -1.6 -8.8e32
3 E60N26
(-742",372") 		E72-E51
(21) 		0.3 -3.1 -1.1e33

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 2-Oct-2012 21:00 UT .