14 October 2012
20121013 Week Rotation Today Rotation Week 20121015

NOAA
6 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W36N39
(439",541")
W15-W53
(38)
2.6 0.2 2.5e32
2 E08N26
(-127",328")
E15-W05
(20)
2.3 -7.4 -4.0e33
3 W46S16
(669",-327")
W33-W69
(36)
1.5 1.3 1.3e33
4 E16N47
(-185",633")
E24-W05
(29)
0.5 0.5 1.3e32
5 E23S42
(-277",-705")
E29-E15
(14)
0.3 2.0 5.1e32
6 W27N25
(404",322")
W22-W35
(13)
0.3 -0.6 -6.5e31
7 E04S38
(-55",-666")
7
(4.0e03)
4.1 16.9 6.7e32

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 14-Oct-2012 21:00 UT .