30 May 2018
⇐20180529 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180531⇒

NOAA
2 Active Regions
12712
12710

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 E02S21
(-33",-327") 		E31-W32
(63) 		9.5 -1.2 -2.6e33
2 E28N59
(-232",815") 		E54-W13
(67) 		1.9 0.8 2.2e33
3 W23S69
(131",-879") 		E67-W65
(132) 		1.6 -1.2 -4.6e33
4 E29N08
(-456",140") 		E40-E18
(22) 		0.9 -0.7 -2.0e32
5 W28S43
(330",-638") 		W18-W42
(24) 		0.8 -0.7 -3.2e32

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 30-May-2018 15:30 UT .