14 April 2023
⇐20230413 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230415⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W46S46
(475",-642") 		W22-W64
(42) 		1.2 2.3 8.0e20
2 E69S47
(-612",-671") 		E85-E64
(21) 		0.1 -1.1 -6.0e19
3 W35N29
(479",537") 		W32-W39
(7) 		0.1 12.8 3.0e20

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 14-Apr-2023 23:30 UT .