1999 NP54

1999NP54, 40395, J99N54P

All data for this body: [vot]

MPC data
Name (number) 1999 NP54 (40395)
a 2.31280
e 0.17962
i / sin(i) 9.5573 / 0.16603
q 1.89738
Q 2.72823
ω 45.3414
Node 200.8224
m 168.1968
n 0.2802
Epoch 2460800.5
nobs 1587
nopp 20
Years observed 1996-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Klio (84)
 
ap 2.313
ep 0.187
sin(ip) 0.170
G 0.150
H 15.710
Mass
D 4.21 0.078
pV 0.082 0.0046
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
84 Klio 413 Klio -0.6000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3126 0.1872 0.1702 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.34 0.920 0.920 Masiero 2021PSJ.....2..162M NEATM
3.81 0.997 0.997 Masiero 2017AJ....154..168M NEATM
3.89 1.050 1.050 Masiero 2021PSJ.....2..162M NEATM
4.22 0.079 0.079 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.070 0.0375 0.0375 Masiero 2017AJ....154..168M NEATM
0.070 0.0370 0.0770 Masiero 2021PSJ.....2..162M NEATM
0.083 0.0047 0.0047 Masiero 2011ApJ...741...68M NEATM
0.095 0.0370 0.0600 Masiero 2021PSJ.....2..162M 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
15.71 MPC-2023-12-04 MPC-2023-12-04 Phot