29 June 2023
⇐20230628 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230630⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W23S42
(280",-657") 		W13-W32
(19) 		0.5 3.9 4.3e20
2 E08S09
(-135",-188") 		E10-E05
(5) 		0.1 -8.0 -7.6e19

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 29-Jun-2023 23:30 UT .