2 August 2023
⇐20230801 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230803⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E42S48
(-416",-753") 		E56-E30
(26) 		0.7 2.0 4.9e20
2 W30N32
(406",435") 		W19-W39
(20) 		0.3 2.0 1.3e20
3 E14N40
(-177",531") 		E18-E11
(7) 		0.1 2.9 7.3e19

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 2-Aug-2023 23:30 UT .