16 August 2015
⇐20150815 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150817⇒

NOAA
4 Active Regions
12400
12401
12398
12399

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E32N48
(-336",637") 		E47-W01
(48) 		7.1 1.2 5.3e33
2 W45N62
(310",799") 		W10-W83
(73) 		1.4 0.3 7.9e32
3 E58S07
(-796",-166") 		E65-E49
(16) 		0.7 2.5 1.9e33
4 W52N01
(748",-48") 		W43-W61
(18) 		0.5 3.5 1.3e33
5 W35N36
(441",488") 		W29-W49
(20) 		0.4 0.8 1.4e32
6 W02N24
(37",287") 		E01-W04
(5) 		0.1 2.9 5.7e31

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 16-Aug-2015 23:35 UT .