16 May 2020
⇐20200515 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200517⇒

NOAA
0 Active Regions

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 W19S08
(304",-87") 		E07-W34
(41) 		4.6 0.2 2.3e20
2 W04S64
(29",-837") 		E76-W74
(150) 		4.3 -0.8 -4.5e21
3 E15N06
(-244",132") 		E27-E01
(26) 		3.3 -0.3 -1.8e20
4 E13S33
(-174",-487") 		E28-W01
(29) 		2.1 -0.5 -3.5e20
5 E32N13
(-492",251") 		E42-E24
(18) 		1.8 0.1 6.0e19
6 W02N69
(15",898") 		E40-W22
(62) 		0.7 0.9 2.0e21
7 W38S31
(501",-464") 		W36-W42
(6) 		0.3 -0.5 -7.6e19
8 E21S21
(-315",-303") 		E23-E19
(4) 		0.1 -0.8 -1.3e19

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 16-May-2020 19:30 UT .