30 June 2022
⇐20220629 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220701⇒

NOAA
4 Active Regions
13040
13042
13043
13044

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 E32N22
(-461",317") 		E53-E15
(38) 		2.9 1.5 8.0e20
2 W29S62
(213",-853") 		W01-W56
(55) 		1.0 -0.5 -2.1e20
3 W02S28
(25",-481") 		E07-W11
(18) 		0.4 -1.8 -1.4e20
4 W08S05
(137",-122") 		E04-W14
(18) 		0.4 1.0 6.1e19
5 E50N69
(-256",871") 		E57-E63
(-6) 		0.3 1.0 1.8e20
6 E36N35
(-453",508") 		E40-E31
(9) 		0.1 -1.0 -1.3e19
7 W18N05
(293",42") 		W16-W20
(4) 		0.0 -1.2 -7.7e18

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 30-Jun-2022 23:30 UT .