13 March 2023
⇐20230312 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230314⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E47S15
(-687",-175") 		E64-E31
(33) 		1.1 2.1 5.3e20
2 W20S46
(235",-609") 		W08-W31
(23) 		0.5 1.3 1.5e20
3 W26N09
(424",262") 		W19-W33
(14) 		0.5 2.3 2.0e20
4 E28S26
(-408",-326") 		E31-E22
(9) 		0.3 16.4 9.3e20
5 E16N22
(-247",473") 		E20-E11
(9) 		0.1 13.1 3.4e20
6 W28S67
(181",-838") 		W18-W37
(19) 		0.1 -1.6 -4.7e19
7 W03N20
(48",443") 		W00-W05
(5) 		0.1 5.2 7.3e19
8 W29S03
(465",63") 		W27-W31
(4) 		0.1 3.0 3.6e19
9 W07S66
(47",-828") 		E04-W13
(17) 		0.1 -1.2 -2.2e19

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 13-Mar-2023 20:30 UT .