1990 GD

1990GD, 1995 SD49, 1995SD49, 19985, J90G00D, J95S49D

All data for this body: [vot]

MPC data
Name (number) 1990 GD (19985)
a 2.44740
e 0.10899
i / sin(i) 7.4629 / 0.12988
q 2.18067
Q 2.71414
ω 254.8073
Node 350.8098
m 359.4467
n 0.2574
Epoch 2460800.5
nobs 2663
nopp 21
Years observed 1990-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.448
ep 0.120
sin(ip) 0.135
G 0.150
H 14.620
Mass
D 3.53 0.115
pV 0.270 0.0335
Value
Rotational Period 5.327
Period quality 2
Spectral Class S
Spectral Class Score 4.758
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4477 0.1200 0.1354 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.53 0.115 0.115 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.270 0.0335 0.0335 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
14.62 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.326506 2 Sidereal Durech 2018A&A...617A..57D Model
5.32655 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A A 0.6218 0.6218 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.793 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT