Downs

1999 RP176, 1999RP176, 24027, J99RH6P

All data for this body: [vot]

MPC data
Name (number) Downs (24027)
a 2.44791
e 0.15743
i / sin(i) 2.0061 / 0.03501
q 2.06252
Q 2.83329
ω 171.5118
Node 241.3608
m 50.1872
n 0.2573
Epoch 2460200.5
nobs 1701
nopp 19
Years observed 1992-2023
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.449
ep 0.144
sin(ip) 0.050
Value Standard error
G 0.150
H 15.480
Mass
D 5.80 0.161
pV 0.036 0.0050
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4490 0.1440 0.0497 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.24 1.450 1.450 Nugent 2016AJ....152...63N NEATM
5.81 0.164 0.164 Masiero 2011ApJ...741...68M NEATM
5.84 1.740 1.740 Masiero 2021PSJ.....2..162M NEATM
5.86 2.230 2.230 Masiero 2020PSJ.....1....5M NEATM
6.20 2.273 2.273 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.031 0.0358 0.0358 Masiero 2017AJ....154..168M NEATM
0.036 0.0053 0.0053 Masiero 2011ApJ...741...68M NEATM
0.039 0.0180 0.0350 Masiero 2021PSJ.....2..162M NEATM
0.039 0.0350 0.0350 Masiero 2020PSJ.....1....5M NEATM
0.040 0.0300 0.0300 Nugent 2016AJ....152...63N 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
15.48 MPC-2023-12-04 MPC-2023-12-04 Phot