1985 UY

1985UY, 09552, 1985 UF2, 1985UF2, 1991 RN14, 1991RN14, 1994 ED9, 1994ED9, J85U00Y, J85U02F, J91R14N, J94E09D

All data for this body: [vot]

MPC data
Name (number) 1985 UY (9552)
a 3.43783
e 0.08472
i / sin(i) 9.9429 / 0.17267
q 3.14659
Q 3.72907
ω 210.2804
Node 177.3642
m 79.4535
n 0.1546
Epoch 2460800.5
nobs 4606
nopp 28
Years observed 1985-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent Sylvia (87)
 
ap 3.431
ep 0.057
sin(ip) 0.169
G 0.150
H 12.320
Mass
D 16.96 0.181
pV 0.101 0.0139
Value
Rotational Period 277.820
Period quality 2
Spectral Class L
Spectral Class Score 7.662
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
87 Sylvia 0 Sylvia Novakovic 2019EPSC...13.1671N HCM
87 Sylvia 603 Sylvia Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.4309 0.0573 0.1690 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.95 0.182 0.182 Masiero 2011ApJ...741...68M NEATM
18.13 1.780 1.780 Usui 2011PASJ...63.1117U NEATM
18.69 3.740 3.740 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.077 0.0310 0.0310 Ali-Lagoa 2018A&A...612A..85A NEATM
0.107 0.0155 0.0155 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
12.32 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.3321 2 Sidereal Durech 2019A&A...631A...2D Model
277.828 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
D 0.53 Bus VIS Carvano 2010A&A...510A..43C PHOT
D D 0.2067 0.3630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.7750 0.3630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
L 0.162 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
L D 0.7816 0.3630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT