1999SR4

19698, 1985UV6, 1990WU15, 1994SM10, J85U06V, J90W15U, J94S10M, J99S04R

All data for this body: [vot]

MPC data
Name (number) 1999SR4 (19698)
Packed designation 19698
a 2.80103
e 0.08568
i / sin(i) 8.9073 / 0.15484
q 2.56105
Q 3.04102
ω 18.1318
Node 198.1789
m 73.2357
n 0.2102
Epoch 2459600.5
nobs 3061
nopp 21
Years observed 1985-2021
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.799
ep 0.129
sin(ip) 0.159
Value Standard error
G 0.150
H 12.900
Mass
D 7.12 0.275
pV 0.318 0.0403
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 516 Gefion 0.5900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7992 0.1285 0.1585 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.12 0.275 0.275 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.318 0.0403 0.0403 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
12.90 MPC-2022-01-18 MPC-2022-01-18 Phot