1 July 2019
⇐20190630 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190702⇒

NOAA
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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 W16N70
(89",870") 		E79-W77
(156) 		2.2 1.1 1.0e21
2 E05S08
(-85",-177") 		E10-W06
(16) 		1.5 -2.1 -4.8e20
3 E17S67
(-105",-888") 		E49-W24
(73) 		0.6 -0.5 -1.4e20
4 W47S02
(686",-63") 		W43-W50
(7) 		0.1 -1.0 -1.1e19

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 1-Jul-2019 22:55 UT .