Pontryagin

04166, 1972 GD1, 1972GD1, 1978 SZ6, 1978SZ6, 1986 RX4, 1986RX4, J72G01D, J78S06Z, J86R04X

All data for this body: [vot]

MPC data
Name (number) Pontryagin (4166)
a 2.60731
e 0.03078
i / sin(i) 3.1074 / 0.05421
q 2.52706
Q 2.68756
ω 127.2509
Node 311.2469
m 319.8110
n 0.2341
Epoch 2460800.5
nobs 5622
nopp 28
Years observed 1955-2025
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.608
ep 0.085
sin(ip) 0.066
G 0.150
H 13.010
Mass
D 8.00 0.077
pV 0.252 0.0297
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 6.400
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6080 0.0845 0.0657 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.95 0.172 0.172 Masiero 2011ApJ...741...68M NEATM
8.01 0.086 0.086 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.251 0.0357 0.0357 Masiero 2011ApJ...741...68M NEATM
0.255 0.0534 0.0534 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
13.01 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.900 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT