9 September 2023
20230908 Week Rotation Today Rotation Week 20230910



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05N36
(-63",466")
E24-W15
(39)
1.8 6.4 2.0e21
2 E00S22
(-4",-462")
E08-W09
(17)
1.0 -9.0 -1.6e21
3 E27S05
(-427",-187")
E34-E13
(21)
0.9 -3.1 -5.0e20
4 W15N17
(232",168")
W11-W18
(7)
0.2 5.2 1.5e20
5 W12S23
(184",-477")
W09-W16
(7)
0.2 -21.3 -6.0e20
6 W35S06
(543",-194")
W31-W38
(7)
0.1 -2.7 -6.9e19

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 9-Sep-2023 23:30 UT .