2 May 2015
⇐20150501 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150503⇒

NOAA
3 Active Regions
12335
12333
12334

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W30N51
(299",775") 		E36-W47
(83) 		4.4 0.7 3.6e33
2 E45S68
(-257",-861") 		E82-W10
(92) 		1.5 -1.1 -4.4e33
3 E06N01
(-95",78") 		E11-W04
(15) 		0.9 -4.2 -6.9e32

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 2-May-2015 23:35 UT .