8 March 2018
⇐20180307 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180309⇒

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 W42N52
(400",810") 		E43-W62
(105) 		4.5 0.7 7.1e33
2 W19S72
(97",-876") 		E81-W86
(167) 		2.3 -1.4 -5.5e33
3 E45N10
(-672",246") 		E76-E21
(55) 		2.0 -1.7 -2.0e33
4 W08S08
(138",-15") 		W07-W10
(3) 		0.1 -2.5 -2.3e31

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 8-Mar-2018 20:30 UT .