21 June 2016
⇐20160620 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160622⇒

NOAA
4 Active Regions
12553
12556
12558
12557

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 W23S23
(339",-393") 		E01-W38
(39) 		2.6 -2.2 -1.9e33
2 E19N24
(-275",355") 		E33-E03
(30) 		2.4 -3.4 -2.4e33
3 E08S66
(-55",-875") 		E65-W54
(119) 		1.7 0.1 4.2e32
4 W19N04
(304",40") 		W13-W24
(11) 		0.3 -2.0 -1.5e32
5 W22S33
(293",-541") 		W15-W30
(15) 		0.2 -1.6 -1.3e32

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 21-Jun-2016 23:20 UT .