17 November 2020
⇐20201116 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201118⇒

NOAA
1 Active Region
12782

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 E03N40
(-33",592") 		E42-W47
(89) 		28.4 0.3 1.5e21
2 W36S60
(290",-855") 		E16-W49
(65) 		1.4 -1.1 -6.3e20
3 W26S00
(430",-42") 		W24-W28
(4) 		0.1 -1.0 -8.3e18
4 W47N23
(651",360") 		W44-W50
(6) 		0.0 -1.7 -1.8e19

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-2020 20:30 UT .