12 March 2023
20230311 Week Rotation Today Rotation Week 20230313



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E58S16
(-786",-200")
E70-E48
(22)
0.5 1.6 2.1e20
2 W12N09
(194",266")
W04-W17
(13)
0.5 3.3 2.4e20
3 W14S65
(96",-824")
W07-W21
(14)
0.1 -1.2 -4.8e19
4 E29N22
(-436",465")
E31-E26
(5)
0.1 16.5 1.8e20
5 W17N06
(286",223")
W15-W19
(4)
0.0 2.3 1.5e19
6 E04N14
(-67",349")
E06-E02
(4)
0.0 29.8 1.8e20

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 12-Mar-2023 20:30 UT .