10 May 2017
⇐20170509 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170511⇒

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 -683
(-507",-257") 		9.0e04
(2.4) 		7.2 -6.1 -5.5e33
2 -121
(121",876") 		2.7e05
(1.2) 		6.4 -5.3 -1.4e34
3 -894
(230",-885") 		0.9
(-1.2) 		-7.5 77.2
4 164
(323",645") 		3.8e04
(0.6) 		6.3 -5.9 -2.2e33
5 270
(293",-150") 		9.0e02
(0.0) 		5.9 -5.5 -4.9e31

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 10-May-2017 23:30 UT .