17 November 2018
⇐20181116 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181118⇒

NOAA
2 Active Regions
12727
12726

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 W01S40
(12",-658") 		E25-W24
(49) 		10.0 -0.3 -1.6e21
2 W21N64
(154",855") 		E78-W52
(130) 		3.8 1.0 5.4e21
3 W37S19
(549",-346") 		W25-W47
(22) 		1.0 -0.6 -2.7e20
4 E24N01
(-400",-18") 		E26-E23
(3) 		0.0 -1.4 -1.6e19
5 W04S05
(71",-132") 		W02-W06
(4) 		0.0 -1.1 -8.4e18

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-Nov-2018 20:30 UT .