16 November 2017
⇐20171115 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171117⇒

NOAA
1 Active Region
12687

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 E09N15
(-145",201") 		E23-W13
(36) 		3.6 1.3 9.8e32
2 W36S20
(540",-370") 		W28-W46
(18) 		1.2 -0.7 -3.6e32
3 W35S67
(214",-909") 		E35-W43
(78) 		0.9 -0.8 -3.1e33
4 E51N64
(-330",859") 		E68-E34
(34) 		0.7 0.7 1.6e33
5 W56N67
(318",881") 		W38-W83
(45) 		0.5 0.4 8.4e32

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 16-Nov-2017 20:30 UT .