9 January 2018
⇐20180108 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180110⇒

NOAA
2 Active Regions
12694
12693

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 E07N60
(-55",878") 		E56-W36
(92) 		2.9 0.9 4.1e33
2 E12N17
(-195",352") 		E22-W10
(32) 		2.8 0.9 6.8e32
3 W14S69
(84",-883") 		E75-W66
(141) 		2.2 -1.2 -4.5e33
4 E35N29
(-493",517") 		E39-E32
(7) 		0.1 -0.4 -2.1e31

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 9-Jan-2018 20:30 UT .