11 September 2021
20210910 Week Rotation Today Rotation Week 20210912



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E28N01
(-444",-87")
E45-E02
(43)
7.1 -0.0 -4.4e19
2 W17N69
(101",843")
E91-W85
(176)
3.6 1.2 1.4e21
3 E25N28
(-360",351")
E28-E22
(6)
0.1 -0.7 -1.0e19
4 E51S31
(-639",-546")
E56-E44
(12)
0.1 -2.4 -5.3e19
5 E11N16
(-179",143")
E13-E10
(3)
0.0 -2.4 -1.6e19
6 E06S26
(-94",-528")
E08-E05
(3)
0.0 -2.0 -1.4e19

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 11-Sep-2021 23:30 UT .