10 December 2020
⇐20201209 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201211⇒

NOAA
2 Active Regions
12790
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 E03N21
(-46",363") 		E31-W28
(59) 		11.0 0.1 1.2e20
2 W41N13
(628",220") 		W26-W57
(31) 		1.7 -0.2 -8.3e19
3 E36N25
(-525",422") 		E44-E25
(19) 		1.6 0.0 6.4e18
4 E32N67
(-208",897") 		E44-W05
(49) 		0.7 0.5 1.8e20
5 E47S50
(-462",-742") 		E59-E39
(20) 		0.4 -1.0 -1.3e20
6 E54S62
(-370",-860") 		E75-E43
(32) 		0.3 -0.2 -2.9e19
7 W49N08
(725",144") 		W47-W51
(4) 		0.1 -1.5 -2.7e19
8 E24S78
(-80",-952") 		E44-E06
(38) 		0.1 -1.5 -8.9e19
9 E24S31
(-338",-498") 		E26-E21
(5) 		0.1 -0.7 -7.9e18
10 E48N20
(-676",341") 		E52-E44
(8) 		0.1 -1.2 -1.6e19
11 E15N36
(-205",577") 		E16-E13
(3) 		0.0 -1.6 -1.2e19

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-2020 20:30 UT .