28 July 2017
⇐20170727 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170729⇒

NOAA
1 Active Region
12668

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 -200
(98",-336") 		1.2e05
(4.9) 		6.1 -6.2 -7.4e33
2 -507
(-205",841") 		5.7e05
(3.1) 		6.3 -5.7 -3.2e34
3 -207
(45",-892") 		3.1e05
(1.1) 		5.6 -6.7 -2.1e34
4 375
(433",-31") 		3.2e03
(0.1) 		4.7 -5.4 -1.7e32
5 315
(346",-621") 		4.1e03
(0.1) 		5.6 -6.0 -2.5e32
6 252
(271",291") 		1.1e03
(0.0) 		5.4 -9.0 -1.0e32

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 28-Jul-2017 23:30 UT .