Anacostia

00980, 1917 YC, 1917YC, 1921 WG, 1921WG, J17Y00C, J21W00G

All data for this body: [vot]

MPC data
Name (number) Anacostia (980)
a 2.74069
e 0.20222
i / sin(i) 15.8956 / 0.27388
q 2.18647
Q 3.29492
ω 69.7379
Node 285.7836
m 163.0248
n 0.2172
Epoch 2460200.5
nobs 3095
nopp 49
Years observed 1929-2023
rms 0.53
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.741
ep 0.140
sin(ip) 0.298
Value Standard error
G 0.150
H 7.960
Mass 7.616e+17 1.725e+17
D 79.51 0.450
pV 0.173 0.0047
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7410 0.1404 0.2982 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.0300e+18 Folkner 2014IPNPR.196C...1F Ephem
4.9327e+17 2.4390e+17 2.4390e+17 Fienga INPOP19a Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
70.00 nan nan Marchis 2006Icar..185...39M AO
71.11 7.110 7.110 Ali-Lagoa 2018A&A...612A..85A NEATM
74.68 0.650 0.650 Masiero 2014ApJ...791..121M NEATM
75.37 2.302 2.302 Ryan&Woodward 2010AJ....140..933R IRAS-STM
78.26 0.950 0.950 Usui 2011PASJ...63.1117U NEATM
86.19 1.600 1.600 Tedesco 2002AJ....123.1056T STM
87.71 3.909 3.909 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
95.57 1.195 1.195 Masiero 2011ApJ...741...68M NEATM
97.93 9.790 9.790 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.136 0.0270 0.0270 Ali-Lagoa 2018A&A...612A..85A NEATM
0.140 0.0125 0.0125 Masiero 2011ApJ...741...68M NEATM
0.168 0.0145 0.0145 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.172 0.0060 0.0060 Tedesco 2002AJ....123.1056T STM
0.226 0.0139 0.0139 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.230 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM
0.258 0.0520 0.0520 Ali-Lagoa 2018A&A...612A..85A 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
7.96 MPC-2023-12-04 MPC-2023-12-04 Phot