5 September 2024
⇐20240904 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240906⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W26N30
(356",382") 		W11-W37
(26) 		1.0 5.1 9.6e20
2 W35N41
(414",550") 		W28-W43
(15) 		0.3 0.7 4.0e19
3 E75N41
(-690",600") 		E82-E63
(19) 		0.2 -1.7 -1.5e20
4 E35N72
(-164",870") 		E48-E18
(30) 		0.1 -0.7 -2.9e19
5 E11N60
(-87",760") 		E14-E05
(9) 		0.1 -0.8 -2.1e19
6 W44S40
(513",-671") 		W41-W48
(7) 		0.1 -1.7 -4.3e19
7 E01N51
(-7",661") 		E03-W03
(6) 		0.1 -1.7 -2.3e19
8 E17N61
(-138",770") 		E20-E14
(6) 		0.0 -2.4 -2.7e19
9 E02N64
(-11",795") 		E03-W02
(5) 		0.0 -0.5 -4.8e18

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 5-Sep-2024 23:30 UT .