1999 RD51

1999RD51, 1998 EW21, 1998EW21, 38278, J98E21W, J99R51D

All data for this body: [vot]

MPC data
Name (number) 1999 RD51 (38278)
a 2.45646
e 0.16778
i / sin(i) 5.1775 / 0.09024
q 2.04432
Q 2.86861
ω 134.8006
Node 143.8921
m 273.2090
n 0.2560
Epoch 2460800.5
nobs 1775
nopp 21
Years observed 1998-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.458
ep 0.160
sin(ip) 0.082
G 0.150
H 15.190
Mass
D 2.06 0.218
pV 0.495 0.1436
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 3.087
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4575 0.1600 0.0821 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.96 0.232 0.232 Masiero 2011ApJ...741...68M NEATM
2.75 0.630 0.630 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.336 0.2003 0.2003 Masiero 2011ApJ...741...68M NEATM
0.663 0.2061 0.2061 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
15.19 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S S 0.5145 0.5145 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT