3 June 2020
⇐20200602 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200604⇒

NOAA
1 Active Region
12764

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 W07S02
(109",-22") 		E29-W39
(68) 		9.3 0.1 1.4e20
2 W13N56
(120",785") 		E54-W74
(128) 		2.7 0.8 2.1e21
3 W04S67
(25",-871") 		E66-W69
(135) 		1.8 -0.9 -3.3e21
4 W35S21
(505",-340") 		W26-W44
(18) 		0.6 -0.8 -1.9e20
5 E37N01
(-576",13") 		E43-E31
(12) 		0.4 0.8 1.1e20
6 W54S16
(736",-261") 		W48-W60
(12) 		0.2 -0.3 -6.6e19
7 W50S21
(680",-342") 		W45-W55
(10) 		0.2 -0.9 -1.1e20

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 3-Jun-2020 19:00 UT .