30 November 2020
20201129 Week Rotation Today Rotation Week 20201201



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W01N19
(9",303")
E13-W13
(26)
2.6 0.2 1.0e20
2 W22N72
(108",924")
E60-W69
(129)
0.9 1.0 5.1e20
3 W13N27
(192",436")
W10-W16
(6)
0.1 0.9 9.0e18
4 E48N03
(-729",42")
E52-E44
(8)
0.0 -0.9 -1.0e19
5 W10N36
(140",566")
W08-W12
(4)
0.0 -1.1 -7.9e18

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 30-Nov-2020 20:30 UT .