1 August 2024
20240731 Week Rotation Today Rotation Week 20240802



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W27N68
(156",843")
E01-W33
(34)
0.5 -0.5 -9.2e19
2 E35S38
(-429",-639")
E39-E31
(8)
0.2 -1.4 -6.2e19
3 E26S17
(-394",-352")
E29-E23
(6)
0.1 -14.4 -3.3e20
4 E20N50
(-207",661")
E23-E16
(7)
0.1 -3.3 -4.3e19
5 E27S26
(-382",-494")
E28-E25
(3)
0.1 -25.3 -2.8e20
6 E16N40
(-195",534")
E18-E13
(5)
0.0 6.8 6.4e19

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 1-Aug-2024 23:30 UT .