1 July 2018
⇐20180630 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180702⇒

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 E09N62
(-67",814") 		E81-W45
(126) 		5.2 0.8 4.5e21
2 E04S16
(-69",-301") 		E20-W11
(31) 		4.3 -0.1 -9.4e19
3 W30N04
(478",28") 		W13-W58
(45) 		3.7 -0.2 -2.0e20
4 E58S06
(-795",-131") 		E65-E52
(13) 		0.2 -0.8 -1.5e20
5 W15S74
(67",-920") 		E01-W30
(31) 		0.1 -1.4 -8.1e20

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-Jul-2018 23:10 UT .