Tyutchev

09927, 1981 TW1, 1981TW1, 1981 UA1, 1981UA1, 1981 UG10, 1981UG10, 1991 XP, 1991XP, J81T01W, J81U01A, J81U10G, J91X00P

All data for this body: [vot]

MPC data
Name (number) Tyutchev (9927)
a 2.21735
e 0.24348
i / sin(i) 6.0331 / 0.10510
q 1.67748
Q 2.75723
ω 90.0694
Node 237.8535
m 110.2134
n 0.2985
Epoch 2460800.5
nobs 3988
nopp 23
Years observed 1981-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.216
ep 0.167
sin(ip) 0.120
G 0.150
H 14.460
Mass
D 3.27 0.333
pV 0.455 0.0281
Value
Rotational Period 2.500
Period quality 2
Spectral Class S
Spectral Class Score 3.606
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2156 0.1667 0.1204 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.27 0.333 0.333 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.455 0.0281 0.0281 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
14.46 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.51 2 Synodic Chang 2016ApJS..227...20C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.601 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT