3 October 2024
⇐20241002 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20241004⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E70N48
(-601",686") 		E81-E77
(4) 		0.9 -0.6 -2.4e20
2 E10S08
(-166",-235") 		E14-E03
(11) 		0.3 4.6 2.5e20
3 E05N24
(-73",289") 		E08-E00
(8) 		0.1 7.8 1.8e20
4 W22N29
(315",378") 		W20-W25
(5) 		0.1 8.5 9.3e19
5 W00N56
(4",735") 		E03-W04
(7) 		0.1 -1.2 -1.6e19
6 E05N45
(-60",592") 		E08-E02
(6) 		0.1 2.9 3.2e19
7 E17N54
(-165",714") 		E21-E14
(7) 		0.0 -1.0 -1.3e19
8 W02N62
(16",793") 		E01-W05
(6) 		0.0 -1.2 -1.5e19

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 3-Oct-2024 23:30 UT .