3 April 2016
20160402 Week Rotation Today Rotation Week 20160404

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E20S29
(-290",-382")
E32-E07
(25)
1.1 4.6 1.6e33
2 E04S78
(-13",-909")
E85-W84
(169)
0.9 -1.1 -2.8e33
3 W37N14
(556",322")
W28-W45
(17)
0.4 -2.9 -5.1e32
4 W03S29
(51",-370")
E04-W09
(13)
0.4 3.2 3.0e32
5 W14N28
(211",535")
W07-W20
(13)
0.4 -3.4 -4.7e32
6 W22N19
(345",408")
W18-W27
(9)
0.3 -4.4 -3.8e32
7 E18N35
(-244",632")
E21-E12
(9)
0.1 -2.7 -1.7e32

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 3-Apr-2016 23:35 UT .