16 August 2017
⇐20170815 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170817⇒

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 E24S20
(-367",-413") 		E45-W10
(55) 		12.3 -0.0 -2.1e32
2 E07N48
(-75",631") 		E82-W42
(124) 		11.7 2.0 1.1e34
3 E67N25
(-793",358") 		E86-E56
(30) 		0.3 -1.3 -8.5e32
4 E51N11
(-724",109") 		E55-E47
(8) 		0.1 -109.7 -4.8e33

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 16-Aug-2017 23:30 UT .