1999 XM90

1999XM90, 1987 VM, 1987VM, 1989 CZ2, 1989CZ2, 43139, J87V00M, J89C02Z, J99X90M

All data for this body: [vot]

MPC data
Name (number) 1999 XM90 (43139)
a 3.19795
e 0.07298
i / sin(i) 14.8546 / 0.25637
q 2.96456
Q 3.43135
ω 124.3901
Node 283.8380
m 206.6817
n 0.1723
Epoch 2460800.5
nobs 3063
nopp 22
Years observed 1987-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Ursula (375)
 
ap 3.191
ep 0.073
sin(ip) 0.277
G 0.150
H 12.940
Mass
D 18.78 3.713
pV 0.031 0.0396
Value
Rotational Period 176.300
Period quality 2
Spectral Class C
Spectral Class Score 2.176
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
375 Ursula 0 Ursula Novakovic 2019EPSC...13.1671N HCM
375 Ursula 631 Ursula Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1905 0.0735 0.2768 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
17.73 6.340 6.340 Nugent 2016AJ....152...63N NEATM
19.33 4.580 4.580 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.030 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.066 0.2780 0.2780 Masiero 2012ApJ...759L...8M 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
12.94 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
176.39 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C C 0.3627 0.3627 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT