23 March 2024
20240322 Week Rotation Today Rotation Week 20240324



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W31S20
(472",-229")
W13-W45
(32)
1.8 -5.4 -1.7e21
2 E18N46
(-210",770")
E36-E02
(34)
1.0 -1.9 -5.3e20
3 W08S55
(78",-722")
W00-W15
(15)
0.2 -0.5 -2.1e19
4 W13S33
(187",-424")
W09-W17
(8)
0.2 -3.0 -9.8e19

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 23-Mar-2024 20:30 UT .