23 March 2023
⇐20230322 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230324⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W16S49
(178",-654") 		E37-W44
(81) 		8.3 -2.2 -3.9e21
2 W38S02
(594",52") 		W36-W40
(4) 		0.0 -1.4 -1.3e19

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 23-Mar-2023 20:30 UT .