1999 SR9

1999SR9, 1998 FG39, 1998FG39, 36176, J98F39G, J99S09R

All data for this body: [vot]

MPC data
Name (number) 1999 SR9 (36176)
a 2.23381
e 0.22662
i / sin(i) 5.8700 / 0.10227
q 1.72760
Q 2.74003
ω 139.2245
Node 169.4215
m 289.7706
n 0.2952
Epoch 2460800.5
nobs 1937
nopp 23
Years observed 1982-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.234
ep 0.172
sin(ip) 0.104
G 0.150
H 15.310
Mass
D 2.56 0.643
pV 0.294 0.1726
Value
Rotational Period 4.700
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2341 0.1716 0.1037 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.56 0.643 0.643 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.294 0.1726 0.1726 Masiero 2011ApJ...741...68M 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
15.31 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.75 2 Synodic Yeh 2020AJ....160...73Y Lightcurve