12 July 2017
⇐20170711 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170713⇒

NOAA
1 Active Region
12665

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 -460
(-259",-480") 		9.5e04
(2.6) 		5.7 -7.2 -6.9e33
2 -143
(268",845") 		5.8e05
(2.3) 		6.0 -5.7 -3.3e34
3 -229
(-170",366") 		1.7e04
(0.6) 		5.0 -8.3 -1.4e33

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 12-Jul-2017 23:30 UT .