25 February 2024
20240224 Week Rotation Today Rotation Week 20240226



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W41S20
(593",-245")
W19-W59
(40)
2.0 -4.5 -1.8e21
2 E04N58
(-36",880")
E25-W15
(40)
0.7 -0.6 -1.5e20
3 W06S33
(84",-429")
W00-W09
(9)
0.3 -4.6 -2.5e20
4 W56N43
(594",702")
W53-W69
(16)
0.1 -1.2 -4.1e19

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 25-Feb-2024 20:30 UT .