30 March 2024
20240329 Week Rotation Today Rotation Week 20240331



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E14N41
(-175",705")
E19-E01
(18)
2.8 -3.1 -2.0e21
2 W26S57
(225",-751")
W07-W49
(42)
1.3 1.2 4.0e20
3 E21S11
(-333",-78")
E28-E13
(15)
1.1 -6.1 -1.1e21
4 W37S31
(502",-418")
W28-W52
(24)
0.8 3.7 6.2e20
5 W57N01
(804",85")
W53-W60
(7)
0.1 4.3 1.3e20
6 E29S23
(-428",-288")
E31-E26
(5)
0.1 -16.3 -1.6e20
7 E38N33
(-495",599")
E41-E35
(6)
0.1 -0.7 -8.5e18

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-Mar-2024 20:30 UT .