1 October 2012
20120930 Week Rotation Today Rotation Week 20121002

NOAA
7 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E33N50
(-336",671")
E46-E16
(30)
2.3 0.7 1.1e33
2 W40N60
(306",784")
W13-W53
(40)
1.5 0.1 2.1e32
3 E33N26
(-469",328")
E44-E23
(21)
0.6 -0.7 -1.6e32
4 E19N09
(-313",43")
E25-E13
(12)
0.4 1.7 1.7e32
5 E65S08
(-858",-177")
E70-E60
(10)
0.2 -2.1 -6.7e32
6 W03N30
(42",385")
5
(1.6e03)
-2.6 12.1 1.9e32

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 1-Oct-2012 21:00 UT .