10 December 2021
⇐20211209 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211211⇒

NOAA
3 Active Regions
12901
12903
12904

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E01N00
(-16",8") 		E32-W25
(57) 		5.1 -0.1 -1.1e20
2 E16N64
(-112",882") 		E45-W62
(107) 		2.3 0.7 6.4e20
3 E33S36
(-435",-563") 		E52-E19
(33) 		1.2 -1.7 -4.7e20
4 W36S36
(469",-570") 		W33-W42
(9) 		0.4 -0.6 -5.4e19
5 E14S20
(-224",-334") 		E18-E10
(8) 		0.2 -1.1 -4.2e19

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 10-Dec-2021 20:30 UT .