1999 XM4

1999XM4, 1995 SB38, 1995SB38, A2887, J95S38B, J99X04M

All data for this body: [vot]

MPC data
Name (number) 1999 XM4 (102887)
a 2.41048
e 0.20407
i / sin(i) 2.2701 / 0.03961
q 1.91858
Q 2.90239
ω 225.5870
Node 179.6659
m 296.3453
n 0.2634
Epoch 2460800.5
nobs 1792
nopp 19
Years observed 1995-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.410
ep 0.185
sin(ip) 0.042
G 0.150
H 15.620
Mass
D 2.12 0.415
pV 0.271 0.1341
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.976
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 -0.1100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4104 0.1853 0.0424 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.12 0.415 0.415 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.271 0.1341 0.1341 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
15.62 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 0.996 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT