22 March 2024
20240321 Week Rotation Today Rotation Week 20240323



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19S21
(294",-246")
E04-W31
(35)
3.2 -6.1 -3.3e21
2 W46S00
(693",75")
W41-W52
(11)
0.2 -0.4 -2.1e19
3 W30S49
(316",-659")
W28-W34
(6)
0.0 -0.7 -7.7e18

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 22-Mar-2024 20:30 UT .