29 September 2018
⇐20180928 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180930⇒

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 W14N69
(85",847") 		E85-W45
(130) 		3.9 1.4 7.5e21
2 E20S11
(-316",-291") 		E30-E03
(27) 		2.7 -1.1 -8.2e20

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 29-Sep-2018 23:10 UT .