8 August 2023
20230807 Week Rotation Today Rotation Week 20230809



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W13N01
(215",-85")
E06-W23
(29)
2.9 -0.1 -3.8e19
2 E57N37
(-637",515")
E61-E40
(21)
0.7 2.5 5.8e20
3 E07N47
(-84",621")
E10-E04
(6)
0.1 -1.4 -1.8e19
4 E45S23
(-624",-428")
E48-E42
(6)
0.0 -7.1 -7.8e19

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 8-Aug-2023 23:30 UT .