29 July 2018
⇐20180728 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180730⇒

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 E18S12
(-284",-287") 		E46-W25
(71) 		10.5 -0.2 -6.7e32
2 W02N66
(13",824") 		E75-W51
(126) 		4.9 1.1 6.3e33
3 E42S23
(-577",-436") 		E46-E38
(8) 		0.1 -0.8 -6.9e31
4 W23S25
(329",-474") 		W20-W25
(5) 		0.1 -0.7 -2.8e31
5 W17N17
(265",196") 		W15-W19
(4) 		0.0 -1.7 -1.6e31

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 29-Jul-2018 16:12 UT .