17 June 2019
20190616 Week Rotation Today Rotation Week 20190618

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29S60
(230",-826")
E29-W55
(84)
3.6 -0.9 -5.1e21
2 E10S09
(-162",-161")
E26-W14
(40)
3.3 0.1 7.8e19
3 W04S32
(61",-522")
E14-W18
(32)
2.8 -0.5 -4.5e20
4 E23N13
(-354",189")
E33-E07
(26)
2.1 0.3 1.7e20
5 E19N67
(-122",861")
E73-W29
(102)
1.7 1.0 3.5e21
6 W26N02
(419",12")
W14-W38
(24)
1.7 -0.4 -1.8e20
7 E48S17
(-673",-287")
E53-E42
(11)
0.2 -0.6 -7.7e19
8 W46N04
(676",43")
W43-W48
(5)
0.1 -0.6 -1.9e19

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 17-Jun-2019 22:50 UT .