1 August 2018
⇐20180731 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180802⇒

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 W23S14
(363",-312") 		E06-W42
(48) 		5.7 -0.4 -7.6e20
2 E07N67
(-44",829") 		E72-W72
(144) 		4.6 1.0 5.7e21
3 E30N21
(-436",260") 		E34-E25
(9) 		0.3 1.0 1.0e20
4 E09S22
(-132",-441") 		E12-E04
(8) 		0.2 -0.8 -5.9e19
5 E07S71
(-37",-919") 		E22-W09
(31) 		0.2 -1.3 -1.2e21

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-Aug-2018 23:10 UT .