Johnbackus

06830, 1934 GK, 1934GK, 1968 HN1, 1968HN1, 1985 GN, 1985GN, 1987 SO10, 1987SO10, 1991 JB1, 1991JB1, J34G00K, J68H01N, J85G00N, J87S10O, J91J01B

All data for this body: [vot]

MPC data
Name (number) Johnbackus (6830)
a 3.16674
e 0.14619
i / sin(i) 5.0814 / 0.08857
q 2.70381
Q 3.62967
ω 152.8216
Node 78.9489
m 350.3345
n 0.1749
Epoch 2460800.5
nobs 4504
nopp 30
Years observed 1934-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.175
ep 0.168
sin(ip) 0.066
G 0.150
H 12.790
Mass
D 15.29 0.147
pV 0.076 0.0122
Value
Rotational Period 4.931
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1745 0.1682 0.0661 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.29 0.147 0.147 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.076 0.0122 0.0122 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
12.79 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.93137 2 Sidereal Durech 2018A&A...617A..57D Model