1995 SY2

1995SY2, 09890, 1979 SG5, 1979SG5, 1992 VA, 1992VA, J79S05G, J92V00A, J95S02Y

All data for this body: [vot]

MPC data
Name (number) 1995 SY2 (9890)
a 2.17038
e 0.14098
i / sin(i) 0.7050 / 0.01230
q 1.86440
Q 2.47635
ω 281.3304
Node 90.0754
m 84.9232
n 0.3082
Epoch 2460800.5
nobs 3015
nopp 23
Years observed 1979-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.170
ep 0.102
sin(ip) 0.010
G 0.150
H 14.910
Mass
D 3.03 0.419
pV 0.284 0.1205
Value
Rotational Period 12.620
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1702 0.1024 0.0103 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.91 0.967 0.967 Masiero 2011ApJ...741...68M NEATM
3.06 0.465 0.465 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.273 0.1554 0.1554 Masiero 2011ApJ...741...68M NEATM
0.302 0.1907 0.1907 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
14.91 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.625 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
12.6308 2 Sidereal Durech 2023A&A...675A..24D Model