4 September 2022
⇐20220903 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220905⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W40N15
(598",150") 		W24-W55
(31) 		4.4 2.0 1.8e21
2 W04N67
(22",827") 		E46-W64
(110) 		4.2 0.8 1.0e21
3 W10N33
(138",419") 		W02-W14
(12) 		0.8 1.9 2.6e20
4 W45N47
(462",631") 		W38-W56
(18) 		0.3 0.3 2.7e19
5 E06N34
(-80",429") 		E09-W00
(9) 		0.3 5.5 2.4e20
6 E09N30
(-133",375") 		E13-E06
(7) 		0.2 7.8 2.0e20

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 4-Sep-2022 23:30 UT .