5 August 2017
⇐20170804 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170806⇒

NOAA
1 Active Region
12670

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 -285
(262",732") 		7.8e05
(9.0) 		6.3 -5.8 -4.5e34
2 475
(618",379") 		7.8e04
(1.2) 		6.3 -6.0 -4.6e33
3 684
(766",-197") 		4.9e04
(0.5) 		6.1 -6.3 -3.1e33
4 714
(762",79") 		2.9e04
(0.4) 		7.0 -5.4 -1.5e33
5 -738
(-696",78") 		1.4e04
(0.2) 		5.5 -11.0 -1.5e33
6 297
(353",-349") 		6.0e03
(0.2) 		16.4 -5.1 -3.0e32
7 72
(144",180") 		3.5e03
(0.2) 		18.3 -4.6 -1.6e32

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 5-Aug-2017 23:30 UT .