30 July 2022
⇐20220729 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220731⇒

NOAA
4 Active Regions
13062
13066
13068
13067

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 W16S41
(194",-691") 		E17-W32
(49) 		7.1 -3.9 -6.6e21
2 E32N65
(-212",817") 		E59-W07
(66) 		0.9 1.1 3.5e20
3 W36S08
(549",-207") 		W23-W44
(21) 		0.5 0.6 6.9e19
4 E37N51
(-360",683") 		E42-E34
(8) 		0.1 -0.7 -1.7e19
5 W38N07
(576",36") 		W36-W40
(4) 		0.0 -2.1 -1.7e19
6 E10N53
(-94",700") 		E13-E07
(6) 		0.0 -2.0 -1.7e19

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 30-Jul-2022 23:30 UT .