5 September 2020
⇐20200904 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200906⇒

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 W25S19
(384",-412") 		E09-W45
(54) 		6.7 -0.2 -3.1e20
2 E46N73
(-203",878") 		E87-W32
(119) 		1.1 1.4 6.9e20
3 W20S58
(171",-858") 		W05-W36
(31) 		0.8 -0.9 -2.9e20
4 E23S18
(-354",-402") 		E28-E18
(10) 		0.3 0.8 4.6e19
5 E11S28
(-161",-550") 		E16-E06
(10) 		0.2 -0.6 -1.8e19
6 E37N23
(-522",285") 		E41-E33
(8) 		0.1 -1.1 -2.3e19
7 W45N02
(679",-43") 		W44-W48
(4) 		0.1 -0.7 -1.1e19
8 E19S11
(-301",-288") 		E21-E16
(5) 		0.1 -1.0 -1.2e19
9 W46S11
(674",-258") 		W45-W48
(3) 		0.0 -1.1 -9.2e18

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 5-Sep-2020 19:00 UT .