28 November 2023
20231127 Week Rotation Today Rotation Week 20231129



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E47S17
(-686",-292")
E66-E26
(40)
4.5 -2.5 -2.8e21
2 W06S05
(94",-105")
W01-W09
(8)
0.3 -1.0 -4.3e19
3 E21N42
(-256",636")
E28-E13
(15)
0.1 -8.6 -2.4e20
4 W08S15
(135",-267")
W07-W10
(3)
0.1 -2.2 -2.8e19

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 28-Nov-2023 20:30 UT .