18 April 2016
20160417 Week Rotation Today Rotation Week 20160419

NOAA
3 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29N36
(375",621")
W02-W46
(44)
5.3 1.9 6.5e33
2 E45N38
(-540",630")
E62-E00
(62)
4.2 1.4 7.0e33
3 W12S70
(66",-866")
E81-W62
(143)
2.7 -1.5 -6.8e33
4 E48S17
(-680",-214")
E59-E38
(21)
1.5 5.1 4.4e33
5 E38N07
(-582",189")
E40-E35
(5)
0.1 -26.0 -1.1e33

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 18-Apr-2016 23:26 UT .