3 April 2024
20240402 Week Rotation Today Rotation Week 20240404



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W39S11
(591",-108")
W31-W45
(14)
0.8 -4.3 -6.4e20
2 E47S56
(-391",-749")
E50-E39
(11)
0.5 0.3 4.3e19
3 E14N11
(-228",286")
E17-E08
(9)
0.3 5.8 2.9e20
4 W29S22
(436",-270")
W22-W35
(13)
0.2 -21.2 -9.3e20
5 W49N21
(676",401")
W46-W50
(4)
0.2 -2.9 -1.4e20
6 W46N50
(441",780")
W43-W47
(4)
0.1 0.7 4.0e19

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 3-Apr-2024 23:30 UT .