3 December 2021
⇐20211202 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211204⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W28S07
(454",-125") 		W11-W55
(44) 		5.1 0.7 6.5e20
2 E12S01
(-198",-19") 		E20-W03
(23) 		2.0 -0.2 -6.7e19
3 E26S73
(-121",-934") 		E39-E13
(26) 		0.2 -0.6 -7.5e19
4 E23N26
(-343",415") 		E28-E17
(11) 		0.1 -2.0 -5.5e19
5 E34S48
(-364",-727") 		E40-E27
(13) 		0.1 -1.2 -3.7e19

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 3-Dec-2021 20:30 UT .