Pyatiletka

02122, 1950 BE1, 1950BE1, 1950 DX, 1950DX, 1951 KB1, 1951KB1, 1954 DA, 1954DA, 1961 AL, 1961AL, 1969 EV1, 1969EV1, 1971 XB, 1971XB, J50B01E, J50D00X, J51K01B, J54D00A, J61A00L, J69E01V, J71X00B

All data for this body: [vot]

MPC data
Name (number) Pyatiletka (2122)
a 2.40139
e 0.03036
i / sin(i) 7.9041 / 0.13751
q 2.32849
Q 2.47429
ω 236.5915
Node 105.3750
m 219.0670
n 0.2649
Epoch 2460800.5
nobs 4780
nopp 35
Years observed 1954-2025
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.402
ep 0.012
sin(ip) 0.125
G 0.150
H 12.120
Mass
D 11.38 0.059
pV 0.207 0.0139
Value
Rotational Period 8.890
Period quality 1
Spectral Class S
Spectral Class Score 11.228
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4018 0.0116 0.1248 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.00 0.830 0.830 Usui 2011PASJ...63.1117U NEATM
11.08 0.100 0.100 Masiero 2014ApJ...791..121M NEATM
11.53 2.310 2.310 Ali-Lagoa 2018A&A...612A..85A NEATM
11.55 0.074 0.074 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.193 0.0198 0.0198 Masiero 2011ApJ...741...68M NEATM
0.220 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM
0.231 0.0920 0.0920 Ali-Lagoa 2018A&A...612A..85A 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
12.12 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
8.899 1 Synodic Waszczak 2015AJ....150...75W Lightcurve
8.90167 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Tholen VIS Alvarez-Candal 2006A&A...459..969A SPEC
S 0.213 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.990000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC