1 October 2020
⇐20200930 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201002⇒

NOAA
1 Active Region
12773

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 W04S11
(59",-289") 		E21-W26
(47) 		3.7 -0.1 -4.8e19
2 W05S57
(46",-858") 		E34-W28
(62) 		1.6 -0.3 -1.9e20
3 W06N31
(83",395") 		E02-W09
(11) 		0.4 -2.0 -1.4e20
4 E35S55
(-315",-836") 		E50-E21
(29) 		0.3 -0.8 -9.8e19
5 W27N03
(441",-53") 		W22-W31
(9) 		0.2 1.0 4.0e19
6 W17N30
(250",385") 		W13-W21
(8) 		0.1 -2.9 -5.8e19
7 W35S33
(454",-603") 		W32-W38
(6) 		0.1 -0.4 -6.9e18
8 E11S19
(-166",-414") 		E13-E08
(5) 		0.1 -2.0 -2.5e19
9 W43S09
(643",-237") 		W40-W45
(5) 		0.1 -1.1 -1.2e19
10 W20S16
(319",-366") 		W19-W22
(3) 		0.0 -1.0 -7.6e18

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 1-Oct-2020 23:30 UT .