8 September 2023
⇐20230907 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230909⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22N37
(-287",479") 		E38-W00
(38) 		1.7 4.8 1.5e21
2 E15S21
(-229",-454") 		E20-E06
(14) 		0.9 -7.1 -1.2e21
3 E39S09
(-589",-243") 		E46-E29
(17) 		0.4 -1.4 -1.0e20
4 W01N17
(9",162") 		E04-W06
(10) 		0.3 10.3 5.1e20
5 E01N52
(-13",674") 		E04-W04
(8) 		0.1 1.4 2.9e19
6 E03S23
(-47",-487") 		E05-W01
(6) 		0.1 -12.5 -1.9e20
7 E05N25
(-76",288") 		E08-E02
(6) 		0.1 4.9 6.3e19
8 E34N62
(-252",786") 		E43-E28
(15) 		0.1 -0.4 -8.0e18
9 E43N05
(-652",-1") 		4
(1.2e03) 		-0.5 3.1 3.7e19
10 W20S06
(319",-214") 		W18-W21
(3) 		0.0 -1.2 -1.0e19

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 8-Sep-2023 23:30 UT .