3 July 2019
⇐20190702 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190704⇒

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 E36N25
(-507",360") 		E53-E16
(37) 		2.3 1.2 5.6e20
2 E08N70
(-41",871") 		E71-W64
(135) 		2.2 1.1 9.8e20
3 W27S04
(428",-117") 		W21-W36
(15) 		1.0 -1.8 -3.1e20
4 E22S11
(-350",-229") 		E27-E17
(10) 		0.2 1.3 5.2e19
5 E40S20
(-575",-355") 		E42-E38
(4) 		0.1 -1.0 -1.2e19
6 E32S00
(-496",-46") 		E33-E30
(3) 		0.0 5.9 4.6e19

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 3-Jul-2019 23:30 UT .