11 April 2023
⇐20230410 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230412⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W06S45
(70",-612") 		E20-W23
(43) 		1.9 2.9 1.1e21
2 E09N31
(-135",575") 		E16-E03
(13) 		0.5 7.1 7.1e20
3 W13N24
(192",472") 		W08-W16
(8) 		0.1 19.5 3.1e20
4 E09S66
(-62",-832") 		E16-E02
(14) 		0.1 -1.2 -2.6e19

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-Apr-2023 23:30 UT .