Roadrunner

16421, 1988BJ, J88B00J

All data for this body: [vot]

MPC data
Name (number) Roadrunner (16421)
Packed designation 16421
a 1.93091
e 0.06369
i / sin(i) 22.8220 / 0.38787
q 1.80793
Q 2.05390
ω 234.5206
Node 309.7699
m 185.6016
n 0.3673
Epoch 2459600.5
nobs 1653
nopp 19
Years observed 1988-2021
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 1.931
ep 0.057
sin(ip) 0.432
Value Standard error
G 0.150
H 14.510
Mass
D 3.26 0.037
pV 0.260 0.0404
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
1.9307 0.0565 0.4321 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.25 0.037 0.037 Masiero 2011ApJ...741...68M NEATM
3.40 0.960 0.960 Nugent 2016AJ....152...63N NEATM
3.72 1.213 1.213 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.244 0.1375 0.1375 Masiero 2017AJ....154..168M NEATM
0.250 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM
0.263 0.0451 0.0451 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
14.51 MPC-2022-01-18 MPC-2022-01-18 Phot