1981 EF5

1981EF5, 17377, 1975 VK3, 1975VK3, J75V03K, J81E05F

All data for this body: [vot]

MPC data
Name (number) 1981 EF5 (17377)
a 2.59633
e 0.21350
i / sin(i) 10.4572 / 0.18150
q 2.04202
Q 3.15065
ω 225.8629
Node 224.1438
m 121.5533
n 0.2356
Epoch 2460200.5
nobs 1712
nopp 21
Years observed 1975-2023
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.597
ep 0.220
sin(ip) 0.195
Value Standard error
G 0.150
H 14.770
Mass
D 6.42 0.020
pV 0.065 0.0088
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5966 0.2203 0.1948 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.42 0.020 0.020 Masiero 2011ApJ...741...68M NEATM
8.45 2.380 2.380 Masiero 2020PSJ.....1....5M NEATM
8.47 2.670 2.670 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.033 0.0240 0.0240 Masiero 2020PSJ.....1....5M NEATM
0.036 0.0260 0.0260 Masiero 2020PSJ.....1....5M NEATM
0.075 0.0102 0.0102 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
14.77 MPC-2023-12-04 MPC-2023-12-04 Phot