19 September 2020
⇐20200918 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200920⇒

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 E15N64
(-103",807") 		E82-W74
(156) 		5.3 0.9 1.4e21
2 W20N08
(328",14") 		E13-W42
(55) 		4.9 0.1 5.1e19
3 W19S58
(162",-863") 		E24-W28
(52) 		1.4 -0.6 -3.1e20
4 W05S34
(68",-630") 		W02-W07
(5) 		0.1 -1.1 -2.8e19
5 E59N36
(-660",510") 		E63-E55
(8) 		0.1 -0.4 -1.1e19
6 W14S33
(192",-609") 		W11-W17
(6) 		0.1 -0.6 -8.9e18

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 19-Sep-2020 19:00 UT .