2 December 2021
⇐20211201 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211203⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W18S06
(297",-118") 		E08-W42
(50) 		6.9 1.0 1.1e21
2 W50N65
(309",882") 		W46-W78
(32) 		0.6 0.5 1.9e20
3 E37S71
(-186",-925") 		E60-E20
(40) 		0.1 -1.1 -1.1e20
4 E12S10
(-208",-172") 		E16-E10
(6) 		0.1 -1.4 -2.5e19
5 E28N01
(-460",10") 		E31-E25
(6) 		0.1 -1.2 -1.4e19
6 E37N26
(-528",418") 		E40-E34
(6) 		0.1 -1.3 -1.7e19

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-2021 20:30 UT .