29 July 2020
⇐20200728 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200730⇒

NOAA
2 Active Regions
12767
12768

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 E01N53
(-9",698") 		E40-W55
(95) 		8.9 0.8 1.7e21
2 W13N12
(214",109") 		E28-W49
(77) 		7.5 -0.0 -8.2e18
3 E49S67
(-280",-888") 		E58-E39
(19) 		0.0 -0.4 -1.4e19
4 W19N56
(167",737") 		W15-W22
(7) 		0.0 1.3 1.4e19

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 29-Jul-2020 19:00 UT .