2 April 2024
⇐20240401 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240403⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W27S14
(430",-139") 		W07-W43
(36) 		2.1 -6.6 -2.4e21
2 W31N51
(310",797") 		W23-W39
(16) 		0.7 -0.6 -1.4e20
3 W34N20
(510",405") 		W32-W40
(8) 		0.7 -4.6 -6.4e20
4 W54S52
(474",-718") 		W48-W64
(16) 		0.3 1.2 1.4e20
5 W33S45
(370",-612") 		W24-W44
(20) 		0.3 0.5 3.3e19
6 E28N11
(-442",275") 		E31-E23
(8) 		0.2 3.9 1.2e20

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-Apr-2024 23:30 UT .