20 June 2016
⇐20160619 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160621⇒

NOAA
4 Active Regions
12553
12556
12557
12558

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09S22
(133",-381") 		E15-W25
(40) 		2.8 -2.5 -1.8e33
2 E30N22
(-439",331") 		E46-E18
(28) 		1.6 -4.5 -2.6e33
3 E26S67
(-165",-877") 		E65-W18
(83) 		1.3 0.5 2.1e33
4 W01N07
(16",87") 		E07-W09
(16) 		0.7 -1.5 -1.8e32
5 W45N74
(189",900") 		W36-W71
(35) 		0.1 -1.7 -8.7e32

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 20-Jun-2016 23:20 UT .