1989 ST

1989ST, 1999 NV12, 1999NV12, 30800, J89S00T, J99N12V

All data for this body: [vot]

MPC data
Name (number) 1989 ST (30800)
a 2.27220
e 0.27611
i / sin(i) 4.4925 / 0.07833
q 1.64482
Q 2.89958
ω 23.2311
Node 292.3170
m 171.3531
n 0.2878
Epoch 2460800.5
nobs 3185
nopp 21
Years observed 1955-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.270
ep 0.231
sin(ip) 0.091
G 0.150
H 14.830
Mass
D
pV
Value
Rotational Period 2.700
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2697 0.2309 0.0908 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.83 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.74 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
30.696 2 Synodic Pal 2020ApJS..247...26P Lightcurve