25 February 2022
20220224 Week Rotation Today Rotation Week 20220226



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20S23
(304",-273")
E15-W40
(55)
12.1 0.5 9.3e20
2 W21S17
(334",-170")
W19-W23
(4)
0.1 1.0 2.0e19
3 E06S28
(-85",-341")
E07-E03
(4)
0.0 -2.0 -1.4e19

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-2022 20:30 UT .