1993 UN4

1993UN4, 2001 SZ54, 2001SZ54, A0168, J93U04N, K01S54Z

All data for this body: [vot]

MPC data
Name (number) 1993 UN4 (100168)
a 2.52260
e 0.25094
i / sin(i) 6.4075 / 0.11160
q 1.88957
Q 3.15564
ω 207.3190
Node 158.5413
m 327.7501
n 0.2460
Epoch 2460800.5
nobs 1135
nopp 20
Years observed 1993-2025
rms 0.81
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.522
ep 0.193
sin(ip) 0.099
G 0.150
H 16.490
Mass
D 1.44 0.197
pV 0.281 0.1186
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 39.686
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5219 0.1927 0.0993 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.44 0.197 0.197 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.281 0.1186 0.1186 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
16.49 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
Q S 0.6676 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.80 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.4360 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.5092 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.5915 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.7217 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9030 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9077 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9603 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9850 0.5940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT