30 December 2018
⇐20181229 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181231⇒

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 E29S11
(-468",-153") 		E53-W00
(53) 		7.7 -0.8 -1.8e21
2 W33N62
(252",878") 		E14-W65
(79) 		1.4 0.9 3.0e21
3 E22S54
(-210",-765") 		E30-E12
(18) 		0.1 -1.6 -1.2e20
4 E34S54
(-323",-768") 		E38-E29
(9) 		0.1 -1.4 -1.3e20
5 W44S10
(666",-142") 		W40-W49
(9) 		0.1 -0.6 -2.2e19

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-Dec-2018 20:30 UT .