2 May 2018
⇐20180501 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180503⇒

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 E29S06
(-454",-34") 		E61-W01
(62) 		6.1 -1.6 -2.8e33
2 E03N60
(-23",853") 		E51-W65
(116) 		3.2 0.8 3.6e33
3 W10S72
(48",-884") 		E80-W74
(154) 		1.9 -1.1 -4.6e33
4 W46N46
(472",720") 		W32-W51
(19) 		1.1 0.6 9.4e32
5 W22S41
(273",-582") 		W18-W25
(7) 		0.1 -0.9 -3.7e31
6 W15S29
(213",-399") 		W12-W17
(5) 		0.1 -0.9 -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 2-May-2018 15:30 UT .