Dido

00209, 1879UC, 1909AB, 1909GB, 1912RB, I79U00C, J09A00B, J09G00B, J12R00B

All data for this body: [vot]

MPC data
Name (number) Dido (209)
Packed designation 00209
a 3.14843
e 0.05562
i / sin(i) 7.1700 / 0.12481
q 2.97332
Q 3.32353
ω 249.7389
Node 0.6389
m 303.3195
n 0.1764
Epoch 2459600.5
nobs 3456
nopp 68
Years observed 1879-2022
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.147
ep 0.074
sin(ip) 0.130
Value Standard error
G 0.150
H 8.260
Mass 1.244e+18 5.949e+17
D 151.09 0.720
pV 0.035 0.0009
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1474 0.0738 0.1303 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.5900e+18 7.4200e+18 7.4200e+18 Zielenbach 2011AJ....142..120Z Deflec
1.7400e+18 Folkner 2014IPNPR.196C...1F Ephem
1.2108e+18 6.0359e+17 6.0359e+17 Fienga INPOP19a Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
118.38 1.300 1.300 Masiero 2014ApJ...791..121M NEATM
124.26 3.674 3.674 Masiero 2011ApJ...741...68M NEATM
132.19 13.220 13.220 Ali-Lagoa 2018A&A...612A..85A NEATM
133.43 2.060 2.060 Usui 2011PASJ...63.1117U NEATM
135.15 8.350 8.350 Ryan&Woodward 2010AJ....140..933R IRAS-STM
156.58 31.320 31.320 Ali-Lagoa 2018A&A...612A..85A NEATM
156.93 9.369 9.369 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
159.94 3.100 3.100 Tedesco 2002AJ....123.1056T STM
179.01 1.060 1.060 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.028 0.0040 0.0040 Masiero 2012ApJ...759L...8M NEATM
0.035 0.0010 0.0010 Tedesco 2002AJ....123.1056T STM
0.038 0.0053 0.0053 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.039 0.0160 0.0160 Ali-Lagoa 2018A&A...612A..85A NEATM
0.051 0.0076 0.0076 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.055 0.0110 0.0110 Ali-Lagoa 2018A&A...612A..85A NEATM
0.058 0.0186 0.0186 Masiero 2011ApJ...741...68M NEATM
0.060 0.0100 0.0100 Masiero 2014ApJ...791..121M 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
8.26 MPC-2022-01-18 MPC-2022-01-18 Phot