Sykes

04438, 1971 TA, 1971TA, 1977 TN5, 1977TN5, 1983 WR, 1983WR, 1987 KB5, 1987KB5, J71T00A, J77T05N, J83W00R, J87K05B

All data for this body: [vot]

MPC data
Name (number) Sykes (4438)
a 3.16119
e 0.25361
i / sin(i) 13.3161 / 0.23032
q 2.35949
Q 3.96288
ω 291.5129
Node 56.8157
m 173.0013
n 0.1754
Epoch 2460800.5
nobs 5112
nopp 31
Years observed 1954-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.181
ep 0.206
sin(ip) 0.224
G 0.150
H 11.690
Mass
D 27.36 0.233
pV 0.061 0.0026
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 3.263
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1813 0.2059 0.2243 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
24.11 5.800 5.800 Masiero 2020PSJ.....1....5M NEATM
24.86 1.300 1.300 Tedesco 2002AJ....123.1056T STM
25.48 1.273 1.273 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
26.69 0.271 0.271 Masiero 2011ApJ...741...68M NEATM
26.71 1.231 1.231 Ryan&Woodward 2010AJ....140..933R IRAS-STM
31.44 0.600 0.600 Usui 2011PASJ...63.1117U NEATM
31.54 3.150 3.150 Ali-Lagoa 2018A&A...612A..85A NEATM
31.71 6.340 6.340 Ali-Lagoa 2018A&A...612A..85A NEATM
33.06 13.858 13.858 Masiero 2017AJ....154..168M NEATM
33.44 4.870 4.870 Masiero 2012ApJ...759L...8M NEATM
40.47 12.321 12.321 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.026 0.0225 0.0225 Masiero 2017AJ....154..168M NEATM
0.039 0.0160 0.0160 Ali-Lagoa 2018A&A...612A..85A NEATM
0.039 0.0335 0.0335 Masiero 2017AJ....154..168M NEATM
0.040 0.0080 0.0080 Ali-Lagoa 2018A&A...612A..85A NEATM
0.046 0.0430 0.0430 Masiero 2020PSJ.....1....5M NEATM
0.062 0.0041 0.0041 Masiero 2011ApJ...741...68M NEATM
0.062 0.0058 0.0058 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.068 0.0070 0.0070 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.072 0.0080 0.0080 Tedesco 2002AJ....123.1056T STM
0.193 0.1750 0.1750 Masiero 2012ApJ...759L...8M 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
11.69 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
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X 0.111 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X 0.16 Bus VIS Carvano 2010A&A...510A..43C PHOT
X X 0.3795 0.3795 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT