1999NP4

1996VH31, 38210, J96V31H, J99N04P

All data for this body: [vot]

MPC data
Name (number) 1999NP4 (38210)
Packed designation 38210
a 2.47295
e 0.09089
i / sin(i) 7.9183 / 0.13776
q 2.24818
Q 2.69772
ω 152.1956
Node 109.5087
m 316.1497
n 0.2534
Epoch 2459600.5
nobs 1022
nopp 18
Years observed 1996-2021
rms 0.73
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 15.320
Mass
D 1.96 0.531
pV 0.419 0.2210
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-Jan-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-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.32 MPC-2022-01-18 MPC-2022-01-18 Phot