2 February 2020
⇐20200201 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200203⇒

NOAA
1 Active Region
12757

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 E01S56
(-11",-749") 		E86-W64
(150) 		9.1 -0.8 -4.7e21
2 W24S10
(385",-69") 		E02-W45
(47) 		5.2 -0.3 -3.7e20
3 E16S02
(-262",61") 		E31-W01
(32) 		4.9 -0.0 -9.5e18
4 E35S08
(-551",-58") 		E39-E31
(8) 		0.1 -0.7 -2.7e19

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 2-Feb-2020 20:30 UT .