27 November 2021
⇐20211126 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211128⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E16N34
(-220",534") 		E32-W08
(40) 		4.0 0.8 6.4e20
2 W25N63
(189",856") 		E42-W42
(84) 		3.4 0.8 9.1e20
3 E39S16
(-591",-280") 		E59-E23
(36) 		1.3 2.0 5.2e20
4 W49S18
(696",-315") 		W43-W55
(12) 		0.3 -2.9 -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 27-Nov-2021 20:30 UT .