13 July 2019
20190712 Week Rotation Today Rotation Week 20190714

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15N03
(-241",-19")
E32-W09
(41)
4.5 -0.1 -8.1e19
2 W07N66
(46",832")
E56-W77
(133)
4.3 1.1 1.6e21
3 W22S17
(341",-340")
W03-W37
(34)
4.0 -0.4 -2.8e20
4 E21S57
(-180",-828")
E59-W49
(108)
3.2 -0.7 -7.8e20
5 W41S17
(591",-324")
W36-W47
(11)
0.4 -1.5 -1.3e20
6 E27S32
(-363",-552")
E30-E24
(6)
0.1 -0.5 -8.1e18
7 E46S47
(-462",-724")
E52-E42
(10)
0.1 -1.9 -4.8e19
8 W05N36
(66",497")
W02-W07
(5)
0.1 -1.2 -1.3e19
9 W48S03
(706",-99")
W46-W51
(5)
0.1 -1.0 -1.4e19
10 W07S32
(101",-562")
W05-W10
(5)
0.0 -0.8 -7.2e18

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 13-Jul-2019 23:30 UT .