4 July 2023
⇐20230703 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230705⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E03N27
(-45",386") 		E19-W14
(33) 		3.5 5.0 2.9e21
2 E30S49
(-306",-744") 		E51-E00
(51) 		2.7 2.0 1.6e21
3 E10N61
(-81",800") 		E14-E06
(8) 		0.1 -0.3 -1.1e19

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 4-Jul-2023 23:30 UT .