13 May 2017
⇐20170512 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170514⇒

NOAA
1 Active Region
12655

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 -241
(152",142") 		1.0e05
(5.1) 		7.5 -5.8 -5.9e33
2 -322
(-160",818") 		3.3e05
(2.6) 		6.4 -5.6 -1.9e34
3 -13
(328",-515") 		1.1e05
(2.5) 		6.4 -5.7 -6.2e33
4 -300
(-85",-894") 		3.3e05
(1.2) 		5.1 -7.3 -2.4e34
5 -837
(-753",-13") 		4.0e04
(0.5) 		5.5 -8.2 -3.3e33

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 13-May-2017 23:30 UT .