21 February 2024
⇐20240220 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240222⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S20
(-349",-223") 		E38-W03
(41) 		2.3 -4.8 -1.9e21
2 E11N46
(-134",776") 		E32-W04
(36) 		2.1 -2.8 -1.5e21
3 W13S01
(218",108") 		W09-W17
(8) 		0.2 -1.6 -6.3e19
4 E52S33
(-647",-462") 		E56-E48
(8) 		0.1 -5.2 -8.8e19
5 W11S53
(113",-699") 		W08-W14
(6) 		0.0 -0.8 -6.2e18

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 21-Feb-2024 20:30 UT .