3 December 2020
⇐20201202 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201204⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E28N03
(-463",45") 		E59-W16
(75) 		9.1 -0.2 -2.9e20
2 W36N72
(180",922") 		W03-W73
(70) 		0.5 1.1 3.5e20
3 E40N28
(-546",458") 		E50-E32
(18) 		0.3 -0.8 -5.6e19
4 W38N33
(509",521") 		W32-W43
(11) 		0.1 -0.4 -1.2e19

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 3-Dec-2020 20:30 UT .