1999 NP4

1999NP4, 1996 VH31, 1996VH31, 38210, J96V31H, J99N04P

All data for this body: [vot]

MPC data
Name (number) 1999 NP4 (38210)
a 2.47431
e 0.09087
i / sin(i) 7.9169 / 0.13774
q 2.24948
Q 2.69914
ω 152.7838
Node 109.4754
m 107.6651
n 0.2532
Epoch 2460200.5
nobs 1306
nopp 20
Years observed 1996-2023
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.471
ep 0.102
sin(ip) 0.122
Value Standard error
G 0.150
H 15.410
Mass
D 1.96 0.531
pV 0.419 0.2210
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4715 0.1016 0.1225 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.96 0.531 0.531 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.419 0.2210 0.2210 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
15.41 MPC-2023-12-04 MPC-2023-12-04 Phot