30 June 2018
⇐20180629 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180701⇒

NOAA
0 Active Regions

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 W21N01
(333",-25") 		E18-W48
(66) 		9.8 -0.3 -6.4e20
2 E11N62
(-81",813") 		E59-W34
(93) 		5.1 0.8 4.5e21
3 E24N08
(-376",96") 		E35-E12
(23) 		1.7 0.1 2.9e19
4 W50S69
(257",-892") 		E19-W68
(87) 		0.5 -1.4 -6.3e21
5 W41S18
(586",-326") 		W36-W46
(10) 		0.3 -1.0 -1.4e20
6 W54S49
(504",-729") 		W48-W60
(12) 		0.2 -1.1 -5.5e20

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-2018 23:10 UT .