14 April 2020
⇐20200413 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200415⇒

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 W03N05
(47",178") 		E17-W21
(38) 		5.4 0.1 8.6e19
2 E15S63
(-108",-812") 		E74-W72
(146) 		5.0 -0.8 -4.4e21
3 E33N64
(-223",892") 		E61-W02
(63) 		0.7 0.4 1.3e21
4 E29N22
(-429",435") 		E36-E23
(13) 		0.6 -0.6 -1.6e20

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-Apr-2020 19:30 UT .