1999 NW20

1999NW20, 2002 HJ9, 2002HJ9, 70145, J99N20W, K02H09J

All data for this body: [vot]

MPC data
Name (number) 1999 NW20 (70145)
a 2.30693
e 0.07348
i / sin(i) 6.5105 / 0.11338
q 2.13741
Q 2.47645
ω 182.3295
Node 90.9187
m 149.4548
n 0.2813
Epoch 2460800.5
nobs 1746
nopp 19
Years observed 1999-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.306
ep 0.073
sin(ip) 0.102
G 0.150
H 15.460
Mass
D 2.53 0.649
pV 0.276 0.1518
Value
Rotational Period
Period quality None
Spectral Class V
Spectral Class Score 6.604
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3064 0.0728 0.1022 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.53 0.649 0.649 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.276 0.1518 0.1518 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.46 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
V DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
V Popescu NIR Mansour 2020MNRAS.491.5966M SPEC+PHOT
V V None None Movis NIR Popescu 2018A&A...617A..12P PHOT
V V 0.6007 0.6007 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT