1999VR21

1995WU13, 21909, J95W13U, J99V21R

All data for this body: [vot]

MPC data
Name (number) 1999VR21 (21909)
Packed designation 21909
a 2.55437
e 0.13281
i / sin(i) 6.4157 / 0.11174
q 2.21513
Q 2.89360
ω 329.1863
Node 194.7498
m 57.3431
n 0.2414
Epoch 2459600.5
nobs 1856
nopp 19
Years observed 1995-2021
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Rafita (1644)
 
ap 2.555
ep 0.169
sin(ip) 0.115
Value Standard error
G 0.150
H 14.640
Mass
D 4.43 0.298
pV 0.143 0.0462
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1644 Rafita 518 Rafita -0.1400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5548 0.1685 0.1152 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.43 0.298 0.298 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.143 0.0462 0.0462 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
14.64 MPC-2022-01-18 MPC-2022-01-18 Phot