15 August 2017
⇐20170814 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170816⇒

NOAA
1 Active Region
12671

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 E16N47
(-184",613") 		E45-W36
(81) 		13.0 2.1 1.3e34
2 E19S07
(-303",-217") 		E33-W04
(37) 		3.8 0.3 3.2e32
3 E01S24
(-20",-484") 		E08-W06
(14) 		0.3 -0.7 -6.2e31
4 E28N21
(-420",243") 		E33-E24
(9) 		0.3 -1.0 -7.6e31

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 15-Aug-2017 23:30 UT .