9 September 2022
⇐20220908 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220910⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19S45
(216",-750") 		W06-W25
(19) 		1.0 3.2 8.0e20
2 E58N32
(-684",453") 		E66-E45
(21) 		0.6 -2.2 -3.7e20
3 W59N32
(696",448") 		W49-W72
(23) 		0.5 4.7 6.6e20
4 W69N69
(314",870") 		W71-W91
(20) 		0.4 0.8 1.8e20
5 E12N27
(-178",325") 		E17-E04
(13) 		0.2 -10.4 -3.5e20
6 W51N24
(682",311") 		W50-W58
(8) 		0.1 8.5 2.4e20
7 E17S12
(-273",-304") 		E21-E13
(8) 		0.1 -1.9 -3.2e19
8 W23N59
(189",757") 		W16-W30
(14) 		0.1 -0.7 -1.3e19

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-Sep-2022 23:30 UT .