Plachinda

06121, 1977 UN1, 1977UN1, 1980 PU3, 1980PU3, 1987 RU3, 1987RU3, J77U01N, J80P03U, J87R03U

All data for this body: [vot]

MPC data
Name (number) Plachinda (6121)
a 2.26147
e 0.18731
i / sin(i) 3.2572 / 0.05682
q 1.83787
Q 2.68506
ω 140.6273
Node 224.2845
m 19.7803
n 0.2898
Epoch 2460800.5
nobs 5348
nopp 28
Years observed 1955-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.262
ep 0.146
sin(ip) 0.070
G 0.150
H 13.600
Mass
D 5.72 0.115
pV 0.305 0.0353
Value
Rotational Period 4.086
Period quality 3
Spectral Class S
Spectral Class Score 5.934
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2616 0.1461 0.0702 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.44 0.152 0.152 Masiero 2011ApJ...741...68M NEATM
6.11 0.176 0.176 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.272 0.0478 0.0478 Masiero 2011ApJ...741...68M NEATM
0.344 0.0523 0.0523 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
13.60 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.085744 2 Sidereal Durech 2018A&A...617A..57D Model
4.0863 3 Synodic Melton 2012MPBu...39..131M Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.989 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT