2 September 2022
⇐20220901 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220903⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W13N50
(136",653") 		E51-W49
(100) 		13.8 1.4 4.2e21
2 E20N30
(-278",378") 		E28-E12
(16) 		0.7 3.4 4.0e20
3 W20S29
(291",-552") 		W14-W25
(11) 		0.1 3.2 8.0e19
4 W42N60
(322",771") 		W35-W49
(14) 		0.1 0.8 1.7e19

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 2-Sep-2022 23:30 UT .