29 July 2023
⇐20230728 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230730⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09N51
(96",672") 		E13-W24
(37) 		0.9 -0.6 -1.3e20
2 E20N32
(-274",422") 		E25-E13
(12) 		0.3 1.8 9.1e19

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 29-Jul-2023 23:30 UT .