7 September 2023
20230906 Week Rotation Today Rotation Week 20230908



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E33N37
(-415",489")
E49-E15
(34)
1.5 3.9 1.2e21
2 E29S21
(-428",-440")
E34-E22
(12)
0.7 -7.0 -9.8e20
3 E13N17
(-204",167")
E18-E07
(11)
0.3 10.1 5.2e20
4 E49S11
(-702",-258")
E52-E44
(8)
0.1 -2.5 -5.3e19
5 W26S13
(409",-324")
W24-W28
(4)
0.1 -12.1 -1.5e20
6 W06S05
(105",-194")
W05-W08
(3)
0.1 -3.6 -2.9e19
7 E14N53
(-136",680")
E15-E11
(4)
0.0 -2.2 -2.2e19

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 7-Sep-2023 23:30 UT .