9 October 2022
⇐20221008 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221010⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E23N36
(-301",486") 		E31-E12
(19) 		0.9 -4.2 -6.8e20
2 E15S18
(-231",-389") 		E21-E07
(14) 		0.6 -2.1 -2.4e20
3 E17N22
(-264",261") 		E24-E10
(14) 		0.2 -9.4 -3.2e20
4 W47S42
(526",-690") 		W41-W54
(13) 		0.1 1.9 8.6e19
5 W04S16
(70",-367") 		W02-W06
(4) 		0.1 -2.6 -3.4e19
6 E35N13
(-539",137") 		E38-E34
(4) 		0.1 -5.5 -7.2e19
7 W02S19
(25",-415") 		E01-W03
(4) 		0.0 -3.0 -1.8e19
8 E05S22
(-77",-449") 		E06-E03
(3) 		0.0 -1.5 -9.1e18

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 9-Oct-2022 23:30 UT .