1991 VP12

1991VP12, 1997 ES1, 1997ES1, 42495, J91V12P, J97E01S

All data for this body: [vot]

MPC data
Name (number) 1991 VP12 (42495)
a 2.54714
e 0.12618
i / sin(i) 5.5102 / 0.09602
q 2.22576
Q 2.86853
ω 238.6892
Node 73.3898
m 35.4431
n 0.2425
Epoch 2460200.5
nobs 1799
nopp 21
Years observed 1991-2023
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.547
ep 0.109
sin(ip) 0.072
Value Standard error
G 0.150
H 15.210
Mass
D 2.54 0.292
pV 0.239 0.0550
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5470 0.1086 0.0718 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.49 0.340 0.340 Masiero 2012ApJ...759L...8M NEATM
2.69 0.567 0.567 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.222 0.0612 0.0612 Masiero 2011ApJ...741...68M NEATM
0.313 0.1260 0.1260 Masiero 2012ApJ...759L...8M 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
15.21 MPC-2023-12-04 MPC-2023-12-04 Phot