28 March 2018
⇐20180327 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180329⇒

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 W14N43
(170",731") 		E37-W39
(76) 		7.4 0.6 3.2e33
2 E08S70
(-45",-860") 		E65-W77
(142) 		3.4 -1.3 -6.4e33
3 E23S42
(-273",-570") 		E29-E14
(15) 		0.8 -0.8 -2.7e32

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 28-Mar-2018 23:30 UT .