15 December 2020
⇐20201214 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201216⇒

NOAA
3 Active Regions
12792
12793
12791

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 E41N53
(-384",789") 		E68-W40
(108) 		4.7 0.7 1.2e21
2 W29N22
(436",384") 		W06-W50
(44) 		4.5 0.2 1.8e20
3 E11N21
(-170",363") 		E27-W09
(36) 		3.6 0.3 1.6e20
4 W07S11
(112",-177") 		E16-W20
(36) 		2.6 -0.1 -3.9e19
5 E11S66
(-76",-886") 		E72-W60
(132) 		2.5 -1.1 -1.0e21
6 E32N14
(-498",254") 		E35-E28
(7) 		0.1 0.7 1.3e19

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 15-Dec-2020 20:30 UT .