1 July 2017
⇐20170630 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170702⇒

NOAA
1 Active Region
12664

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 -451
(-27",858") 		4.7e05
(2.8) 		7.1 -5.8 -2.7e34
2 -303
(-151",-257") 		5.9e04
(2.6) 		5.5 -7.2 -4.2e33
3 -249
(91",-870") 		4.3e05
(2.0) 		5.2 -6.8 -2.9e34
4 421
(478",225") 		7.0e03
(0.2) 		5.0 -6.8 -4.7e32
5 -49
(-27",660") 		3.6e03
(0.1) 		5.3 -5.6 -2.0e32

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 1-Jul-2017 23:30 UT .