7 February 2020
⇐20200206 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200208⇒

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 E01S66
(-4",-837") 		E82-W63
(145) 		5.0 -1.1 -5.9e21
2 W04N20
(69",431") 		E12-W17
(29) 		4.7 0.5 6.8e20
3 E07N64
(-54",915") 		E47-W36
(83) 		1.1 1.0 3.0e21
4 W06S42
(81",-564") 		W02-W11
(9) 		0.2 -0.6 -3.7e19
5 W65S49
(580",-696") 		W60-W69
(9) 		0.1 -0.7 -9.0e19

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 7-Feb-2020 20:30 UT .