United Nations

UnitedNations, 06000, 1987 UN, 1987UN, 1991 TC1, 1991TC1, J87U00N, J91T01C

All data for this body: [vot]

MPC data
Name (number) United Nations (6000)
a 2.60164
e 0.18447
i / sin(i) 14.4002 / 0.24869
q 2.12172
Q 3.08156
ω 316.0139
Node 52.0882
m 355.6041
n 0.2349
Epoch 2460800.5
nobs 10145
nopp 28
Years observed 1974-2025
rms 0.41
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.602
ep 0.148
sin(ip) 0.234
G 0.150
H 12.180
Mass
D 11.00 0.295
pV 0.211 0.0336
Value
Rotational Period 3.260
Period quality 3
Spectral Class S
Spectral Class Score 6.290
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia -0.9000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6015 0.1481 0.2342 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.00 0.295 0.295 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.211 0.0336 0.0336 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
12.18 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.2616 3 Synodic Behrend LCDB Lightcurve
3.2619 2 Sidereal Durech 2023A&A...675A..24D Model
3.26191 2 Sidereal Hanus 2016A&A...586A.108H Model
3.262 3 Synodic Bennefeld LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.104 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9443 0.9443 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT