16 July 2017
⇐20170715 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170717⇒

NOAA
3 Active Regions
12665
12666
12667

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 -690
(-414",584") 		4.5e05
(7.2) 		8.4 -5.3 -2.4e34
2 511
(561",-510") 		1.4e04
(0.2) 		5.3 -9.4 -1.3e33
3 594
(648",-459") 		1.2e04
(0.1) 		5.7 -10.8 -1.3e33
4 145
(199",-898") 		6.2e04
(0.1) 		4.8 -6.6 -4.1e33
5 -124
(-79",-925") 		5.1e04
(0.1) 		4.7 -6.6 -3.4e33

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 16-Jul-2017 23:30 UT .