1999 XL20

1999XL20, 2001 FF78, 2001FF78, 70971, J99X20L, K01F78F

All data for this body: [vot]

MPC data
Name (number) 1999 XL20 (70971)
a 2.39491
e 0.13789
i / sin(i) 3.3237 / 0.05798
q 2.06466
Q 2.72516
ω 25.4800
Node 93.3796
m 251.2183
n 0.2659
Epoch 2460800.5
nobs 2274
nopp 19
Years observed 1999-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.395
ep 0.166
sin(ip) 0.042
G 0.150
H 15.140
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana -0.3100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3950 0.1660 0.0422 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.14 MPC-2023-12-04 MPC-2023-12-04 Phot