1999 XE171

1999XE171, 1977 DY2, 1977DY2, 49913, J77D02Y, J99XH1E

All data for this body: [vot]

MPC data
Name (number) 1999 XE171 (49913)
a 2.22717
e 0.10486
i / sin(i) 3.9248 / 0.06845
q 1.99362
Q 2.46071
ω 87.3289
Node 347.2774
m 66.9055
n 0.2965
Epoch 2460200.5
nobs 2110
nopp 17
Years observed 1977-2023
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.227
ep 0.126
sin(ip) 0.068
Value Standard error
G 0.150
H 15.730
Mass
D 1.95 0.200
pV 0.351 0.0440
Rotational Period
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.1200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2273 0.1262 0.0677 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.95 0.200 0.200 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.351 0.0440 0.0440 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
15.73 MPC-2023-12-04 MPC-2023-12-04 Phot