9 May 2015
⇐20150508 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150510⇒

NOAA
7 Active Regions
12335
12336
12337
12338
12339
12340
12341

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07S32
(-103",-457") 		E23-W12
(35) 		3.8 -4.5 -5.1e33
2 E08S68
(-51",-858") 		E79-W64
(143) 		3.1 -1.2 -5.7e33

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 9-May-2015 23:35 UT .