1999XT20

1991FF7, 36257, J91F07F, J99X20T

All data for this body: [vot]

MPC data
Name (number) 1999XT20 (36257)
Packed designation 36257
a 3.12304
e 0.15520
i / sin(i) 2.4942 / 0.04352
q 2.63833
Q 3.60774
ω 151.7647
Node 123.8907
m 115.7652
n 0.1786
Epoch 2459600.5
nobs 2207
nopp 21
Years observed 1991-2022
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.132
ep 0.155
sin(ip) 0.026
Value Standard error
G 0.150
H 13.580
Mass
D 5.50 0.292
pV 0.212 0.0590
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 602 Themis -0.0200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1324 0.1549 0.0263 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.50 0.292 0.292 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.212 0.0590 0.0590 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
13.58 MPC-2022-01-18 MPC-2022-01-18 Phot