1999 NR8

1999NR8, 1998 HN137, 1998HN137, 40340, J98HD7N, J99N08R

All data for this body: [vot]

MPC data
Name (number) 1999 NR8 (40340)
a 2.45763
e 0.17153
i / sin(i) 8.0978 / 0.14086
q 2.03607
Q 2.87920
ω 222.7432
Node 135.9083
m 214.8560
n 0.2558
Epoch 2460800.5
nobs 2295
nopp 21
Years observed 1998-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.458
ep 0.136
sin(ip) 0.128
G 0.150
H 14.560
Mass
D 4.24 0.293
pV 0.189 0.0417
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4583 0.1364 0.1283 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.43 0.570 0.570 Masiero 2012ApJ...759L...8M NEATM
4.53 0.342 0.342 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.180 0.0436 0.0436 Masiero 2011ApJ...741...68M NEATM
0.286 0.1430 0.1430 Masiero 2012ApJ...759L...8M 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
14.56 MPC-2023-12-04 MPC-2023-12-04 Phot