1999 XP2

1999XP2, 1995 SX71, 1995SX71, 1999 XH138, 1999XH138, D7654, J95S71X, J99X02P, J99XD8H

All data for this body: [vot]

MPC data
Name (number) 1999 XP2 (137654)
a 2.33543
e 0.14763
i / sin(i) 3.2506 / 0.05670
q 1.99066
Q 2.68020
ω 75.6758
Node 83.5978
m 324.6653
n 0.2762
Epoch 2460800.5
nobs 571
nopp 16
Years observed 1995-2025
rms 0.89
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.335
ep 0.189
sin(ip) 0.042
G 0.150
H 17.250
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 6.969
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 -0.3600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3353 0.1886 0.0423 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
17.25 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S S 0.5632 0.5840 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.5983 0.5840 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT