31 January 2016
⇐20160130 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160201⇒

NOAA
3 Active Regions
12488
12489
12490

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 W17N49
(187",799") 		E50-W63
(113) 		6.6 0.9 5.5e33
2 E03S08
(-57",-40") 		E08-W02
(10) 		0.7 4.5 5.5e32
3 W53S71
(259",-894") 		W36-W86
(50) 		0.7 -1.1 -2.6e33
4 E01N17
(-18",385") 		E04-W03
(7) 		0.3 2.9 1.9e32
5 E05S84
(-10",-952") 		E24-W31
(55) 		0.1 -1.4 -6.2e32
6 W01N10
(9",263") 		E02-W02
(4) 		0.1 4.5 4.9e31

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 31-Jan-2016 21:30 UT .