26 October 2021
⇐20211025 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211027⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15N11
(-244",99") 		E28-W07
(35) 		4.4 -0.2 -1.3e20
2 W06N67
(42",851") 		E82-W86
(168) 		4.4 0.8 1.2e21
3 E52N41
(-575",595") 		E68-E35
(33) 		1.1 0.8 2.6e20
4 W34N07
(541",41") 		4
(1.5e03) 		-1.0 7.5 1.1e20

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 26-Oct-2021 19:30 UT .