28 February 2024
20240227 Week Rotation Today Rotation Week 20240229



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E36S57
(-316",-750")
E43-E19
(24)
1.2 0.9 3.2e20
2 W50S36
(601",-505")
W44-W55
(11)
0.2 -3.4 -2.1e20
3 E57N39
(-628",658")
E59-E53
(6)
0.0 -0.3 -6.5e18

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 28-Feb-2024 20:30 UT .