1 January 2020
⇐20191231 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200102⇒

NOAA
1 Active Region
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 E13S61
(-103",-832") 		E69-W64
(133) 		5.2 -1.1 -6.1e21
2 W29S09
(473",-116") 		W10-W47
(37) 		5.0 -0.0 -1.8e19
3 E08S19
(-128",-273") 		E18-W10
(28) 		3.2 -0.0 -3.0e19
4 E25N02
(-411",80") 		E41-E09
(32) 		3.0 0.0 2.7e19
5 W10N69
(60",930") 		E43-W42
(85) 		0.8 0.9 2.4e21
6 W42S55
(369",-780") 		W29-W50
(21) 		0.4 -0.5 -2.7e20
7 E40N12
(-618",233") 		E42-E37
(5) 		0.1 -0.7 -3.2e19
8 E39S10
(-608",-129") 		E45-E35
(10) 		0.1 -0.9 -3.4e19
9 E09N41
(-115",678") 		E11-E07
(4) 		0.1 -1.3 -5.4e19
10 W37S18
(561",-271") 		W35-W40
(5) 		0.0 -1.5 -2.6e19

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-Jan-2020 20:30 UT .