23 June 2020
⇐20200622 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200624⇒

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 W02S08
(27",-169") 		E19-W24
(43) 		5.7 -0.4 -3.6e20
2 E14S61
(-110",-843") 		E49-W57
(106) 		2.9 -0.8 -8.4e20
3 W34N72
(165",888") 		E34-W65
(99) 		0.8 1.4 5.6e20
4 W35S40
(418",-624") 		W31-W38
(7) 		0.1 -1.4 -2.6e19

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 23-Jun-2020 19:00 UT .