24 September 2020
⇐20200923 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200925⇒

NOAA
1 Active Region
12773

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 E31N42
(-369",557") 		E50-E168
(-118) 		12.2 0.6 1.7e21
2 E36N13
(-549",116") 		E37-E34
(3) 		0.0 -1.2 -9.9e18
3 E67N64
(-390",832") 		E72-E63
(9) 		0.0 1.7 3.7e19

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 24-Sep-2020 23:30 UT .