10 April 2024
⇐20240409 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240411⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W02S29
(25",-381") 		E07-W07
(14) 		0.7 -10.2 -1.2e21
2 E19N33
(-261",604") 		E27-E11
(16) 		0.6 7.7 9.2e20
3 W07N32
(96",587") 		W01-W12
(11) 		0.4 3.2 2.3e20
4 W12N42
(144",709") 		W08-W16
(8) 		0.1 -2.5 -5.9e19
5 E08N30
(-112",568") 		E10-E05
(5) 		0.1 10.4 2.0e20
6 W15S23
(223",-280") 		W11-W18
(7) 		0.1 -7.1 -9.3e19
7 E11S42
(-136",-563") 		E14-E08
(6) 		0.1 -2.4 -3.1e19
8 W08S24
(123",-301") 		W05-W10
(5) 		0.1 -16.9 -1.7e20
9 E17S49
(-184",-655") 		E20-E14
(6) 		0.1 -0.5 -6.6e18
10 E55S01
(-786",43") 		E57-E52
(5) 		0.1 -0.9 -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 10-Apr-2024 23:30 UT .