18 November 2020
⇐20201117 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201119⇒

NOAA
2 Active Regions
12783
12782

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 E00N41
(-4",612") 		E62-W40
(102) 		21.7 0.4 1.6e21
2 W36N26
(516",404") 		W29-W46
(17) 		0.5 1.1 1.1e20
3 E15S14
(-248",-281") 		E20-E11
(9) 		0.4 1.0 6.1e19
4 W42S72
(207",-930") 		E08-W57
(65) 		0.3 -0.6 -1.7e20
5 E37S62
(-272",-874") 		E53-E35
(18) 		0.2 -0.3 -3.3e19
6 W24N50
(256",715") 		W21-W29
(8) 		0.1 -0.6 -1.8e19
7 E17S71
(-91",-928") 		E22-E02
(20) 		0.1 -0.9 -6.0e19
8 W53S47
(525",-730") 		W48-W59
(11) 		0.1 -0.6 -2.1e19
9 E27S06
(-438",-134") 		E29-E25
(4) 		0.1 -1.2 -1.8e19
10 E09S38
(-124",-625") 		E11-E07
(4) 		0.0 -0.9 -7.5e18

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 18-Nov-2020 20:30 UT .