1 March 2018
⇐20180228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180302⇒

NOAA
1 Active Region
12700

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 E07N44
(-82",757") 		E67-W42
(109) 		7.9 0.8 4.3e33
2 E14S67
(-88",-843") 		E85-W88
(173) 		4.7 -1.2 -6.7e33

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-Mar-2018 20:30 UT .