26 March 2020
⇐20200325 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200327⇒

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 E20S65
(-138",-818") 		E63-W88
(151) 		5.2 -0.8 -4.9e21
2 E04S27
(-57",-335") 		E20-W19
(39) 		4.1 -0.5 -5.2e20
3 E16S03
(-266",66") 		E29-W04
(33) 		2.1 -0.3 -1.2e20
4 W25S25
(372",-309") 		W12-W36
(24) 		1.6 -0.1 -6.8e19
5 W32N03
(515",145") 		W30-W34
(4) 		0.1 -0.7 -2.2e19

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 26-Mar-2020 20:30 UT .