1 August 2016
⇐20160731 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160802⇒

NOAA
1 Active Region
12570

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 E39N50
(-384",670") 		E78-W88
(166) 		8.0 0.4 2.9e33
2 W09N11
(138",94") 		E14-W25
(39) 		4.1 0.6 4.8e32
3 E53S03
(-753",-107") 		E63-E41
(22) 		1.2 -1.1 -1.0e33
4 E26N48
(-279",639") 		E28-E24
(4) 		0.0 -1.6 -4.4e31

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 1-Aug-2016 23:20 UT .