1 June 2017
⇐20170531 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170602⇒

NOAA
1 Active Region
12661

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 -323
(5",-859") 		4.6e05
(2.8) 		5.2 -7.3 -3.3e34
2 -278
(173",854") 		3.8e05
(1.9) 		6.6 -5.3 -2.0e34
3 454
(516",-735") 		4.1e04
(0.1) 		5.3 -6.3 -2.6e33
4 130
(187",640") 		6.5e03
(0.1) 		5.5 -7.7 -5.0e32
5 -94
(-66",168") 		1.5e03
(0.1) 		4.3 -5.8 -8.9e31
6 165
(187",707") 		2.5e03
(0.0) 		4.7 -13.1 -3.3e32

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-Jun-2017 23:30 UT .