2 December 2022
20221201 Week Rotation Today Rotation Week 20221203

NOAA
4 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29N11
(-457",183")
E45-E10
(35)
6.4 -2.4 -2.6e21
2 W51S12
(746",-204")
W29-W66
(37)
2.5 1.6 9.8e20
3 W33S74
(142",-940")
W26-W49
(23)
0.1 -0.8 -3.5e19
4 W51N43
(552",656")
W48-W53
(5)
0.0 -0.6 -8.1e18

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 2-Dec-2022 20:30 UT .