14 May 2020
⇐20200513 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200515⇒

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 E22S18
(-339",-252") 		E35-W08
(43) 		7.9 0.1 2.8e20
2 W21S02
(348",3") 		W06-W38
(32) 		3.6 -0.2 -1.8e20
3 E10S65
(-72",-843") 		E72-W47
(119) 		3.6 -0.9 -4.3e21
4 E30N65
(-195",879") 		E50-E17
(33) 		0.6 0.7 1.1e21
5 W12S47
(130",-661") 		W05-W16
(11) 		0.3 -1.1 -1.4e20
6 E51N12
(-724",224") 		E53-E49
(4) 		0.1 -0.9 -4.2e19

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 14-May-2020 19:30 UT .