19 June 2017
⇐20170618 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170620⇒

NOAA
2 Active Regions
12662
12663

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 -758
(-346",631") 		4.4e05
(6.8) 		7.1 -5.6 -2.4e34
2 542
(617",-464") 		2.6e04
(0.3) 		5.9 -9.1 -2.4e33
3 -257
(-180",-888") 		9.0e04
(0.2) 		6.0 -7.8 -7.0e33
4 14
(43",436") 		1.9e03
(0.1) 		47.2 -3.1 -5.9e31

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 19-Jun-2017 23:30 UT .