26 August 2016
⇐20160825 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160827⇒

NOAA
4 Active Regions
12579
12580
12581
12578

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 E64N41
(-650",575") 		E78-E63
(15) 		2.5 1.0 4.3e33
2 E16N04
(-264",-53") 		E27-E03
(24) 		1.6 2.5 8.9e32
3 W27N76
(105",888") 		E49-W63
(112) 		1.4 0.8 2.8e33
4 W45S63
(301",-879") 		W43-W57
(14) 		0.0 -1.2 -4.4e32
5 W62S11
(826",-228") 		W59-W66
(7) 		0.0 -2.0 -1.4e32

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 26-Aug-2016 23:31 UT .