3 January 2020
⇐20200102 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200104⇒

NOAA
2 Active Regions
12755
12753

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 W04S51
(46",-718") 		E35-W65
(100) 		12.3 -0.6 -4.1e21
2 E22S17
(-349",-238") 		E38-W02
(40) 		3.3 -0.3 -3.1e20
3 W34S11
(538",-148") 		W20-W46
(26) 		2.2 0.2 1.7e20
4 E07N12
(-108",265") 		E13-W04
(17) 		1.7 -0.0 -4.3e18
5 E26N15
(-414",309") 		E43-E11
(32) 		1.6 0.0 2.1e19
6 W19N70
(107",934") 		E10-W44
(54) 		0.4 0.9 1.4e21
7 W34S19
(517",-276") 		W30-W39
(9) 		0.2 -0.6 -3.7e19
8 E43S14
(-646",-201") 		E47-E40
(7) 		0.1 -0.6 -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 3-Jan-2020 20:30 UT .