28 May 2023
⇐20230527 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230529⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E35S39
(-423",-588") 		E46-E02
(44) 		3.3 3.5 2.7e21
2 E39N08
(-592",151") 		E47-E31
(16) 		1.0 1.8 3.4e20
3 W38N38
(462",598") 		W31-W46
(15) 		0.4 -3.4 -3.4e20
4 E17N01
(-285",34") 		E20-E15
(5) 		0.1 -1.0 -1.1e19
5 W50N33
(610",526") 		W47-W53
(6) 		0.0 -5.8 -7.0e19

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 28-May-2023 23:30 UT .