8 February 2021
20210207 Week Rotation Today Rotation Week 20210209

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W36S02
(568",64")
E07-W62
(69)
8.5 0.1 1.6e20
2 E47S56
(-396",-762")
E55-W48
(103)
5.3 -0.9 -1.6e21
3 W06N24
(99",498")
E09-W15
(24)
1.4 0.3 6.5e19
4 E62N30
(-743",527")
E72-E56
(16)
0.3 0.3 3.6e19
5 W30S28
(427",-368")
W26-W33
(7)
0.1 -0.9 -1.6e19
6 W15S05
(248",30")
W12-W17
(5)
0.1 -2.1 -1.9e19
7 W47S20
(671",-267")
W45-W49
(4)
0.0 -1.8 -2.0e19

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-Feb-2021 20:30 UT .