7 March 2021
⇐20210306 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210308⇒

NOAA
2 Active Regions
12806
12807

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 W12N07
(198",240") 		E43-W67
(110) 		18.5 0.0 4.9e18
2 E37S66
(-239",-835") 		E62-W15
(77) 		2.8 -0.7 -6.9e20
3 E49S33
(-615",-461") 		E56-E41
(15) 		0.5 -1.7 -2.2e20
4 E48N00
(-723",85") 		E52-E44
(8) 		0.1 -0.6 -1.0e19
5 E07S43
(-91",-569") 		E10-E04
(6) 		0.0 -0.9 -7.6e18
6 W14N32
(204",606") 		W13-W16
(3) 		0.0 -0.5 -4.2e18
7 W57S08
(806",-65") 		W55-W60
(5) 		0.0 -0.8 -8.1e18
8 W06N21
(102",455") 		W05-W08
(3) 		0.0 -2.3 -1.4e19

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 7-Mar-2021 20:30 UT .