22 February 2019
⇐20190221 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190223⇒

NOAA
0 Active Regions

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 E35S22
(-512",-265") 		E63-W03
(66) 		6.7 -0.5 -1.2e21
2 E28S68
(-175",-851") 		E82-W79
(161) 		3.0 -1.1 -4.8e21
3 E33N62
(-246",900") 		E55-E01
(54) 		0.7 0.4 1.3e21
4 W10N56
(97",863") 		E03-W17
(20) 		0.3 0.6 2.9e20

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 22-Feb-2019 20:30 UT .