8 December 2020
⇐20201207 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201209⇒

NOAA
4 Active Regions
12790
12791
12787
12789

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 E34N20
(-516",328") 		E67-E03
(64) 		10.9 0.0 9.9e19
2 W24N13
(388",214") 		E09-W44
(53) 		8.8 -0.4 -5.9e20
3 W39N30
(532",489") 		W34-W42
(8) 		0.3 -0.8 -5.9e19
4 E48N65
(-307",882") 		E69-E19
(50) 		0.3 0.3 4.8e19
5 E18S42
(-219",-657") 		E21-E16
(5) 		0.1 1.4 2.4e19
6 E61N17
(-812",291") 		E64-E56
(8) 		0.1 -0.5 -1.1e19
7 E63N24
(-788",405") 		E69-E59
(10) 		0.1 1.5 3.1e19
8 W48N01
(722",25") 		W45-W49
(4) 		0.0 -1.0 -1.0e19

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 8-Dec-2020 20:30 UT .