1981EY4

1999NW18, 37539, J81E04Y, J99N18W

All data for this body: [vot]

MPC data
Name (number) 1981EY4 (37539)
Packed designation 37539
a 2.61614
e 0.11180
i / sin(i) 9.2025 / 0.15992
q 2.32364
Q 2.90863
ω 30.9554
Node 311.6360
m 73.9792
n 0.2329
Epoch 2459600.5
nobs 1096
nopp 19
Years observed 1981-2022
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.617
ep 0.077
sin(ip) 0.173
Value Standard error
G 0.150
H 14.850
Mass
D 4.59 0.327
pV 0.154 0.0213
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6173 0.0775 0.1728 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.57 0.332 0.332 Masiero 2011ApJ...741...68M NEATM
5.28 1.852 1.852 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.091 0.0644 0.0644 Masiero 2017AJ....154..168M NEATM
0.161 0.0226 0.0226 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.85 MPC-2022-01-18 MPC-2022-01-18 Phot