1997 GV18

1997GV18, 1977 UU4, 1977UU4, 35340, J77U04U, J97G18V

All data for this body: [vot]

MPC data
Name (number) 1997 GV18 (35340)
a 3.21383
e 0.14150
i / sin(i) 4.0678 / 0.07094
q 2.75909
Q 3.66858
ω 230.7649
Node 208.0110
m 59.9853
n 0.1711
Epoch 2460800.5
nobs 2753
nopp 22
Years observed 1977-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.231
ep 0.110
sin(ip) 0.081
G 0.150
H 13.930
Mass
D 9.66 0.591
pV 0.052 0.0113
Value
Rotational Period 12.510
Period quality 3-
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2312 0.1095 0.0810 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.66 0.591 0.591 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.052 0.0113 0.0113 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
13.93 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.519 3- Synodic Warner 2013MPBu...40..137W Lightcurve
12.529 2 Synodic Pal 2020ApJS..247...26P Lightcurve