29 May 2015
⇐20150528 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150530⇒

NOAA
6 Active Regions
12356
12351
12352
12353
12354
12355

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09N55
(85",790") 		E52-W51
(103) 		4.2 0.6 2.4e33
2 E32S68
(-184",-875") 		E72-W29
(101) 		1.3 -1.1 -4.1e33
3 W36N31
(483",499") 		W26-W44
(18) 		0.7 2.8 1.1e33
4 W52S21
(704",-322") 		W43-W66
(23) 		0.2 7.9 1.6e33
5 W56N16
(757",276") 		W50-W63
(13) 		0.2 7.5 1.8e33
6 E04N10
(-61",183") 		E06-E01
(5) 		0.1 -5.6 -1.5e32

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-May-2015 23:35 UT .