1999 UL1

1999UL1, 1988 RU1, 1988RU1, 40992, J88R01U, J99U01L

All data for this body: [vot]

MPC data
Name (number) 1999 UL1 (40992)
a 3.07885
e 0.22460
i / sin(i) 1.8798 / 0.03280
q 2.38734
Q 3.77037
ω 30.3258
Node 32.2844
m 241.5428
n 0.1824
Epoch 2460800.5
nobs 1664
nopp 20
Years observed 1988-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.074
ep 0.244
sin(ip) 0.035
G 0.150
H 14.400
Mass
D 7.57 0.287
pV 0.070 0.0114
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0741 0.2439 0.0355 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.11 2.151 2.151 Masiero 2017AJ....154..168M NEATM
7.58 0.290 0.290 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.068 0.0362 0.0362 Masiero 2017AJ....154..168M NEATM
0.070 0.0120 0.0120 Masiero 2012ApJ...759L...8M 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
14.40 MPC-2023-12-04 MPC-2023-12-04 Phot