3 July 2021
⇐20210702 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210704⇒

NOAA
3 Active Regions
12835
12836
12837

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 E38N59
(-298",789") 		E42-W75
(117) 		3.3 0.9 9.7e20
2 E17S06
(-270",-145") 		E27-E03
(24) 		1.6 0.1 1.7e19
3 W23N10
(359",111") 		W09-W34
(25) 		1.5 -0.1 -3.3e19
4 E37S67
(-222",-883") 		E62-E13
(49) 		0.3 -0.7 -1.1e20
5 E62S00
(-836",-26") 		6
(1.5e03) 		-0.9 3.3 5.0e19
6 E02S01
(-38",-64") 		E04-E01
(3) 		0.0 -3.9 -2.3e19

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-Jul-2021 23:30 UT .