5 March 2021
⇐20210304 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210306⇒

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 W21N03
(346",160") 		E31-W60
(91) 		16.5 0.2 5.6e20
2 E42S70
(-216",-874") 		E73-W85
(158) 		1.3 -0.9 -4.8e20
3 E33N15
(-508",354") 		E35-E31
(4) 		0.1 -0.6 -1.0e19
4 E40S02
(-627",61") 		E42-E37
(5) 		0.0 -0.9 -7.7e18

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 5-Mar-2021 20:30 UT .