21 June 2017
⇐20170620 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170622⇒

NOAA
3 Active Regions
12662
12663
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 -421
(-102",691") 		5.1e05
(8.6) 		8.0 -5.7 -2.9e34
2 -633
(-445",361") 		1.2e05
(3.0) 		5.8 -6.2 -7.2e33
3 -473
(-297",-869") 		4.6e05
(0.8) 		5.5 -6.3 -2.9e34
4 -638
(-566",-229") 		1.5e04
(0.3) 		5.0 -6.7 -9.8e32
5 -466
(-441",66") 		1.4e03
(0.0) 		4.5 -5.4 -7.6e31

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 21-Jun-2017 23:30 UT .