Semenov

02475, 1908 SB, 1908SB, 1961 TC1, 1961TC1, 1972 TF2, 1972TF2, 1972 TK4, 1972TK4, 1977 RW4, 1977RW4, 1977 TF4, 1977TF4, J08S00B, J61T01C, J72T02F, J72T04K, J77R04W, J77T04F

All data for this body: [vot]

MPC data
Name (number) Semenov (2475)
a 3.03834
e 0.10224
i / sin(i) 9.0869 / 0.15793
q 2.72769
Q 3.34898
ω 181.8289
Node 209.9249
m 336.8553
n 0.1861
Epoch 2460800.5
nobs 9102
nopp 35
Years observed 1908-2025
rms 0.48
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.038
ep 0.078
sin(ip) 0.165
G 0.150
H 11.840
Mass
D 14.70 0.064
pV 0.229 0.0136
Value
Rotational Period 12.000
Period quality 2
Spectral Class K
Spectral Class Score 3.768
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0385 0.0776 0.1648 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.49 0.140 0.140 Masiero 2014ApJ...791..121M NEATM
14.74 0.072 0.072 Masiero 2011ApJ...741...68M NEATM
16.10 1.210 1.210 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.171 0.0200 0.0200 Masiero 2012ApJ...759L...8M NEATM
0.269 0.0504 0.0504 Masiero 2011ApJ...741...68M NEATM
0.280 0.0200 0.0200 Masiero 2014ApJ...791..121M 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
11.84 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.0 2 Synodic Behrend LCDB Lightcurve
12.2369 2 Sidereal Durech 2023A&A...675A..24D Model
12.23696 2 Sidereal Durech 2019A&A...631A...2D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
K 0.628 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT