9 May 2023
⇐20230508 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230510⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E10N32
(-139",552") 		E22-W08
(30) 		0.8 7.5 1.1e21
2 W44S50
(425",-703") 		W31-W64
(33) 		0.5 0.4 5.4e19
3 E18S44
(-216",-618") 		E23-E10
(13) 		0.4 2.3 1.8e20
4 E44N40
(-499",647") 		E60-E33
(27) 		0.3 2.2 2.2e20
5 W17N27
(242",483") 		W09-W23
(14) 		0.2 6.5 3.0e20
6 W26N27
(376",478") 		W23-W29
(6) 		0.1 12.6 1.3e20

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-May-2023 23:30 UT .