1987 UW1

1987UW1, 06513, 1991 RQ1, 1991RQ1, J87U01W, J91R01Q

All data for this body: [vot]

MPC data
Name (number) 1987 UW1 (6513)
a 2.61943
e 0.12980
i / sin(i) 8.7263 / 0.15171
q 2.27944
Q 2.95942
ω 168.8749
Node 230.2136
m 303.5927
n 0.2325
Epoch 2460800.5
nobs 5601
nopp 28
Years observed 1987-2025
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.619
ep 0.113
sin(ip) 0.164
G 0.150
H 13.660
Mass
D 5.50 0.108
pV 0.585 0.0663
Value
Rotational Period 2.689
Period quality 2
Spectral Class S
Spectral Class Score 14.003
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6190 0.1128 0.1642 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.50 0.108 0.108 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.585 0.0663 0.0663 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
13.66 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.68894 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Kl Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.74 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.754 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9998 0.9998 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT