29 July 2015
⇐20150728 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150730⇒

NOAA
3 Active Regions
12389
12390
12391

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S31
(-308",-558") 		E43-E10
(33) 		1.6 -3.5 -2.6e33
2 E10N06
(-170",3") 		E15-W04
(19) 		1.3 -5.8 -1.4e33
3 E36S64
(-241",-879") 		60
(3.1e05) 		-0.7 5.9 1.8e34
4 W13S19
(204",-394") 		W10-W16
(6) 		0.3 -4.0 -3.3e32
5 E17N15
(-269",167") 		E19-E15
(4) 		0.0 -3.7 -3.6e31

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 29-Jul-2015 23:35 UT .