17 July 2022
⇐20220716 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220718⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E32S20
(-475",-385") 		E58-E07
(51) 		5.0 -2.2 -2.2e21
2 E28N36
(-362",502") 		E62-E08
(54) 		3.0 -4.7 -2.9e21
3 W33N04
(511",4") 		W30-W35
(5) 		0.2 -3.8 -1.2e20
4 E10S22
(-145",-423") 		E11-E07
(4) 		0.1 2.3 2.5e19

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 17-Jul-2022 23:30 UT .