Grotius

09994, 1981 WH9, 1981WH9, 4028 P-L, 4028P-L, J81W09H, PLS4028

All data for this body: [vot]

MPC data
Name (number) Grotius (9994)
a 2.58577
e 0.17511
i / sin(i) 7.1848 / 0.12507
q 2.13299
Q 3.03856
ω 223.6585
Node 207.1071
m 6.3399
n 0.2370
Epoch 2460200.5
nobs 2221
nopp 24
Years observed 1960-2023
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent Rafita (1644)
 
ap 2.585
ep 0.174
sin(ip) 0.133
Value Standard error
G 0.150
H 14.520
Mass
D 3.75 0.146
pV 0.263 0.0403
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1644 Rafita 518 Rafita 0.7300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5850 0.1743 0.1333 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.75 0.146 0.146 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.263 0.0403 0.0403 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
14.52 MPC-2023-12-04 MPC-2023-12-04 Phot