1999 US7

1999US7, 1992 DH2, 1992DH2, 40998, J92D02H, J99U07S

All data for this body: [vot]

MPC data
Name (number) 1999 US7 (40998)
a 2.75694
e 0.13013
i / sin(i) 7.4327 / 0.12936
q 2.39817
Q 3.11570
ω 311.0886
Node 54.8367
m 234.9491
n 0.2153
Epoch 2460800.5
nobs 3400
nopp 22
Years observed 1992-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.757
ep 0.090
sin(ip) 0.115
G 0.150
H 13.810
Mass
D 9.33 0.111
pV 0.080 0.0082
Value
Rotational Period 2.920
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7571 0.0897 0.1147 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.79 2.340 2.340 Masiero 2020PSJ.....1....5M NEATM
9.33 0.111 0.111 Masiero 2011ApJ...741...68M NEATM
9.97 4.210 4.210 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.060 0.0620 0.0620 Masiero 2020PSJ.....1....5M NEATM
0.076 0.0460 0.0460 Masiero 2020PSJ.....1....5M NEATM
0.081 0.0084 0.0084 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
13.81 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.924 2 Synodic Waszczak 2015AJ....150...75W Lightcurve