6 September 2021
20210905 Week Rotation Today Rotation Week 20210907



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W06N67
(36",828")
E66-W54
(120)
4.2 0.9 1.2e21
2 W06S03
(97",-169")
E11-W16
(27)
2.1 0.3 1.0e20
3 W07S40
(87",-703")
E12-W17
(29)
1.6 -1.5 -5.8e20
4 E09S64
(-67",-901")
E34-W28
(62)
0.6 -0.5 -1.7e20
5 E04S24
(-55",-496")
E07-W00
(7)
0.2 -1.2 -3.8e19
6 E37S04
(-573",-159")
E39-E35
(4)
0.0 -1.1 -9.4e18

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 6-Sep-2021 19:30 UT .