6 January 2020
⇐20200105 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200107⇒

NOAA
1 Active Region
12755

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 W05S05
(87",-18") 		E39-W45
(84) 		15.1 -0.2 -6.2e20
2 W15S65
(105",-861") 		E76-W62
(138) 		4.1 -1.2 -6.6e21
3 W11N66
(72",915") 		E42-W43
(85) 		1.1 0.8 2.4e21
4 W09S42
(118",-603") 		W06-W13
(7) 		0.3 -0.5 -7.5e19
5 W34N32
(460",567") 		W30-W37
(7) 		0.1 -1.0 -4.9e19
6 W57S17
(787",-252") 		W53-W62
(9) 		0.1 -0.6 -3.6e19
7 W24N33
(337",579") 		W21-W28
(7) 		0.1 -1.9 -4.5e19
8 E36S10
(-572",-126") 		E38-E35
(3) 		0.0 -1.0 -1.4e19
9 W54S20
(748",-297") 		W51-W57
(6) 		0.0 -1.7 -5.2e19

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 6-Jan-2020 20:30 UT .