4 December 2022
⇐20221203 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221205⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E04N07
(-63",117") 		E18-W15
(33) 		7.7 -2.6 -3.1e21
2 W25S10
(411",-175") 		W18-W30
(12) 		0.4 1.4 9.2e19
3 E11N39
(-141",606") 		E13-E08
(5) 		0.1 -11.4 -1.3e20

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 4-Dec-2022 20:30 UT .