11 May 2023
⇐20230510 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230512⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19N39
(-241",642") 		E35-E06
(29) 		0.7 3.2 4.7e20
2 W12S44
(140",-622") 		W03-W22
(19) 		0.6 2.2 2.5e20
3 W21N31
(290",533") 		W14-W28
(14) 		0.3 7.4 4.5e20
4 W08S09
(139",-99") 		W04-W11
(7) 		0.2 3.5 1.3e20
5 W10N36
(136",594") 		W02-W15
(13) 		0.2 5.5 2.6e20
6 W31N28
(427",486") 		W25-W37
(12) 		0.2 10.8 4.3e20
7 E40N54
(-358",793") 		E53-E33
(20) 		0.1 -0.7 -4.2e19
8 W45N27
(600",465") 		W36-W54
(18) 		0.1 5.9 2.1e20

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 11-May-2023 23:30 UT .