1 September 2013
⇐20130831 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130902⇒

NOAA
3 Active Regions
11834
11835
11836

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E03S12
(-52",-316") 		E09-W07
(16) 		1.9 -2.5 -1.1e33
2 E23S55
(-212",-833") 		E37-E05
(32) 		0.5 0.7 5.7e32
3 W41N43
(456",583") 		W31-W54
(23) 		0.5 1.9 6.0e32
4 E41N60
(-319",769") 		E54-E33
(21) 		0.2 -0.5 -1.1e32
5 W19N59
(157",757") 		W13-W21
(8) 		0.1 -0.6 -7.1e31
6 W03N61
(24",768") 		E01-W06
(7) 		0.0 -0.7 -2.3e31

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 1-Sep-2013 23:35 UT .