30 November 2023
⇐20231129 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231201⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E23S15
(-361",-262") 		E55-E00
(55) 		7.4 -3.7 -4.8e21
2 W25N63
(183",865") 		W15-W35
(20) 		0.2 -0.3 -2.2e19
3 W05N42
(64",644") 		8
(1.2e03) 		-8.8 3.6 4.3e19

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 30-Nov-2023 20:30 UT .