3 April 2020
⇐20200402 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200404⇒

NOAA
1 Active Region
12759

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 E10S63
(-74",-805") 		E56-W56
(112) 		6.3 -0.9 -5.4e21
2 W23S17
(358",-191") 		E04-W36
(40) 		1.7 -0.1 -5.8e19
3 W05N67
(30",920") 		E23-W45
(68) 		0.6 0.9 2.1e21

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-Apr-2020 19:30 UT .