30 June 2017
⇐20170629 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170701⇒

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 -409
(-38",866") 		4.7e05
(2.5) 		6.5 -5.6 -2.7e34
2 -315
(-15",-862") 		4.4e05
(2.5) 		5.3 -6.9 -3.0e34
3 -345
(-149",-331") 		4.1e04
(1.7) 		5.6 -6.2 -2.5e33
4 -457
(-349",-257") 		4.6e04
(1.6) 		5.1 -6.6 -3.0e33
5 187
(220",-592") 		3.4e03
(0.1) 		6.2 -6.4 -2.2e32
6 -237
(-201",-222") 		1.4e03
(0.1) 		4.2 -5.4 -7.3e31

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 30-Jun-2017 23:30 UT .