25 July 2017
⇐20170724 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170726⇒

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 -392
(-261",-402") 		5.2e04
(1.7) 		5.4 -5.9 -3.1e33
2 -426
(-247",854") 		3.8e05
(1.4) 		6.5 -5.8 -2.2e34
3 30
(332",825") 		3.6e05
(1.4) 		6.8 -5.4 -2.0e34
4 -355
(-136",-890") 		3.8e05
(1.1) 		5.6 -6.6 -2.5e34
5 -12
(34",-535") 		2.1e03
(0.1) 		5.3 -9.4 -2.0e32

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 25-Jul-2017 23:30 UT .