1999 XA90

1999XA90, 1996 RM31, 1996RM31, 41278, J96R31M, J99X90A

All data for this body: [vot]

MPC data
Name (number) 1999 XA90 (41278)
a 3.96172
e 0.12517
i / sin(i) 7.9854 / 0.13892
q 3.46582
Q 4.45763
ω 304.2612
Node 258.1318
m 351.2051
n 0.1250
Epoch 2460800.5
nobs 2146
nopp 24
Years observed 1996-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent Hilda (153)
 
ap 3.966
ep 0.196
sin(ip) 0.158
G 0.150
H 13.120
Mass
D 16.33 0.340
pV 0.060 0.0120
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 19.810
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
153 Hilda 1 Hilda Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.9663 0.1961 0.1576 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.33 0.340 0.340 Grav 2012ApJ...744..197G NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.060 0.0120 0.0120 Grav 2012ApJ...744..197G 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
13.12 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
B X 0.1711 0.6410 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
CX 0.17 Bus VIS Carvano 2010A&A...510A..43C PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X 0.937 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X X 0.1299 0.6410 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.5546 0.6410 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.5611 0.6410 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.7858 0.6410 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT