1999 XA90

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

All data for this body: [vot]

MPC data
Name (number) 1999 XA90 (41278)
a 3.95902
e 0.12448
i / sin(i) 7.9859 / 0.13893
q 3.46619
Q 4.45185
ω 304.3520
Node 258.1358
m 276.0283
n 0.1251
Epoch 2460200.5
nobs 1660
nopp 23
Years observed 1996-2023
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Hilda (153)
 
ap 3.966
ep 0.196
sin(ip) 0.158
Value Standard error
G 0.150
H 13.170
Mass
D 16.33 0.340
pV 0.060 0.0120
Rotational Period
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-Oct-2022
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
13.17 MPC-2023-12-04 MPC-2023-12-04 Phot