1999 NQ20

1999NQ20, 35997, J99N20Q

All data for this body: [vot]

MPC data
Name (number) 1999 NQ20 (35997)
a 3.13447
e 0.21642
i / sin(i) 11.6734 / 0.20233
q 2.45611
Q 3.81283
ω 209.4932
Node 103.7812
m 210.6536
n 0.1776
Epoch 2460800.5
nobs 1698
nopp 25
Years observed 1991-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent Lixiaohua (3556)
 
ap 3.147
ep 0.202
sin(ip) 0.174
G 0.150
H 14.320
Mass
D 8.39 0.145
pV 0.042 0.0048
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
3556 Lixiaohua 0 Lixiaohua Novakovic 2019EPSC...13.1671N HCM
3556 Lixiaohua 613 Lixiaohua -0.4800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1465 0.2018 0.1745 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.82 1.806 1.806 Masiero 2017AJ....154..168M NEATM
8.37 0.147 0.147 Masiero 2011ApJ...741...68M NEATM
8.80 2.640 2.640 Masiero 2017AJ....154..168M NEATM
9.89 1.370 1.370 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.026 0.0090 0.0090 Masiero 2012ApJ...759L...8M NEATM
0.048 0.0250 0.0250 Masiero 2017AJ....154..168M NEATM
0.048 0.0059 0.0059 Masiero 2011ApJ...741...68M NEATM
0.060 0.0288 0.0288 Masiero 2017AJ....154..168M 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
14.32 MPC-2023-12-04 MPC-2023-12-04 Phot