29 November 2017
⇐20171128 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171130⇒

NOAA
1 Active Region
12689

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 E38N28
(-535",448") 		E58-E11
(47) 		3.4 1.4 2.5e33
2 W15S61
(122",-859") 		E64-W26
(90) 		2.5 -1.1 -4.0e33
3 E12S21
(-183",-359") 		E23-W09
(32) 		2.0 0.1 6.1e31
4 W39S34
(507",-553") 		W25-W46
(21) 		1.3 -2.6 -2.2e33
5 E40N61
(-306",845") 		E65-E20
(45) 		1.1 0.7 1.5e33
6 W50S11
(733",-202") 		W44-W56
(12) 		0.4 -0.8 -2.0e32
7 W14S32
(194",-535") 		W08-W18
(10) 		0.2 -1.0 -6.3e31
8 W47S18
(673",-313") 		W44-W50
(6) 		0.1 -1.2 -6.1e31
9 E09N18
(-150",288") 		E11-E07
(4) 		0.1 2.0 2.6e31

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 29-Nov-2017 20:30 UT .