17 December 2010
⇐20101216 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101218⇒

NOAA
2 Active Regions
11133
11135

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W52S08
(762",-128") 		W38-W67
(29) 		1.3 -0.4 -3.7e32
2 W25S49
(273",-729") 		W09-W43
(34) 		1.1 0.5 4.3e32
3 W20N16
(327",284") 		W06-W31
(25) 		1.0 -5.2 -1.4e33
4 E01S53
(-6",-769") 		E10-W10
(20) 		0.6 0.6 2.6e32
5 W24S70
(136",-908") 		W08-W57
(49) 		0.3 1.1 9.0e32
6 W02N26
(24",441") 		E04-W05
(9) 		0.2 -9.9 -6.5e32
7 W34N13
(538",237") 		W30-W39
(9) 		0.2 -2.1 -1.6e32
8 W36S09
(565",-142") 		W32-W40
(8) 		0.1 -0.9 -3.1e31

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 17-Dec-2010 23:30 UT .