27 February 2024
20240226 Week Rotation Today Rotation Week 20240228



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E53S56
(-432",-756")
E56-E36
(20)
0.9 0.7 2.2e20
2 W36S37
(457",-496")
W29-W41
(12)
0.4 -3.5 -3.1e20
3 W66S20
(831",-286")
W56-W81
(25)
0.4 -2.3 -3.4e20
4 W26N55
(246",850")
W15-W40
(25)
0.3 -0.7 -8.2e19

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 27-Feb-2024 20:30 UT .