1999SY9

2000XW51, 38444, J99S09Y, K00X51W

All data for this body: [vot]

MPC data
Name (number) 1999SY9 (38444)
Packed designation 38444
a 2.60918
e 0.12004
i / sin(i) 7.9635 / 0.13854
q 2.29598
Q 2.92238
ω 268.2947
Node 33.6685
m 132.4120
n 0.2339
Epoch 2459600.5
nobs 893
nopp 17
Years observed 1994-2021
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.610
ep 0.098
sin(ip) 0.131
Value Standard error
G 0.150
H 15.140
Mass
D 4.96 0.271
pV 0.072 0.0095
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6102 0.0981 0.1314 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.96 0.271 0.271 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.072 0.0095 0.0095 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.14 MPC-2022-01-18 MPC-2022-01-18 Phot