9 April 2024
⇐20240408 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240410⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15S31
(-207",-412") 		E25-E06
(19) 		0.7 -8.2 -9.9e20
2 E32N33
(-418",597") 		E45-E20
(25) 		0.5 7.2 8.6e20
3 E11N32
(-154",591") 		E16-E02
(14) 		0.4 4.2 3.2e20
4 W06S21
(100",-257") 		E01-W10
(11) 		0.2 -10.0 -2.8e20
5 E37N60
(-286",868") 		E53-E32
(21) 		0.0 -0.9 -2.2e19
6 E03N40
(-37",695") 		E04-E00
(4) 		0.0 -3.8 -3.2e19
7 E29S48
(-310",-655") 		E30-E27
(3) 		0.0 -0.9 -7.9e18

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 9-Apr-2024 23:30 UT .