14 September 2018
⇐20180913 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180915⇒

NOAA
2 Active Regions
12721
12722

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 W10S18
(159",-400") 		E17-W24
(41) 		6.9 -1.1 -2.1e21
2 W49N62
(335",801") 		E72-W65
(137) 		3.7 0.8 5.2e21
3 E16S52
(-162",-816") 		E22-E09
(13) 		0.2 -0.6 -1.6e20
4 E33S64
(-231",-893") 		E38-E23
(15) 		0.2 -0.5 -5.2e20
5 W04N20
(58",219") 		E01-W07
(8) 		0.2 -1.9 -7.6e19
6 E22S19
(-336",-421") 		E24-E19
(5) 		0.0 -1.7 -2.4e19

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 14-Sep-2018 23:10 UT .