7 February 2019
⇐20190206 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190208⇒

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 W00S23
(6",-276") 		E33-W44
(77) 		7.8 -0.3 -4.9e20
2 E22S62
(-171",-806") 		E59-W82
(141) 		6.0 -0.7 -4.2e21
3 E11N53
(-107",838") 		E52-W18
(70) 		2.3 0.6 1.5e21
4 E43S02
(-662",48") 		E49-E36
(13) 		0.3 0.6 8.3e19
5 W28S10
(453",-74") 		W26-W31
(5) 		0.1 -1.1 -2.7e19
6 W40N08
(615",216") 		W37-W42
(5) 		0.1 -0.6 -2.1e19

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-Feb-2019 20:30 UT .