30 June 2015
⇐20150629 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150701⇒

NOAA
3 Active Regions
12373
12374
12375

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E39S25
(-540",-434") 		E47-E25
(22) 		2.9 -2.1 -3.4e33
2 E08N24
(-119",340") 		E10-E04
(6) 		0.1 -4.4 -9.0e31

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 30-Jun-2015 23:35 UT .