25 September 2022
⇐20220924 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220926⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W34S40
(407",-685") 		E00-W44
(44) 		4.3 -2.1 -2.5e21
2 E36N29
(-490",381") 		E49-E15
(34) 		3.1 1.4 9.0e20
3 E53N02
(-769",-35") 		E72-E41
(31) 		2.0 1.3 6.6e20
4 E56N60
(-395",791") 		E62-E40
(22) 		0.4 0.4 6.7e19
5 E13S66
(-85",-915") 		E28-E03
(25) 		0.2 -0.5 -6.0e19
6 E06N09
(-98",28") 		E09-E02
(7) 		0.2 -1.1 -3.0e19
7 E33N45
(-366",610") 		E35-E30
(5) 		0.0 -1.5 -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 25-Sep-2022 23:30 UT .