1999RP91

18852, 1976SL1, 1987ON1, 1998LH3, J76S01L, J87O01N, J98L03H, J99R91P

All data for this body: [vot]

MPC data
Name (number) 1999RP91 (18852)
Packed designation 18852
a 3.17779
e 0.16246
i / sin(i) 1.4411 / 0.02515
q 2.66152
Q 3.69407
ω 236.3704
Node 56.7016
m 29.8519
n 0.1740
Epoch 2459600.5
nobs 2196
nopp 22
Years observed 1976-2021
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.179
ep 0.155
sin(ip) 0.018
Value Standard error
G 0.150
H 13.040
Mass
D 11.99 0.161
pV 0.072 0.0099
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 602 Themis 0.4900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1792 0.1550 0.0178 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.99 0.161 0.161 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.072 0.0099 0.0099 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.04 MPC-2022-01-18 MPC-2022-01-18 Phot