1998 SG30

1998SG30, 1977 ET2, 1977ET2, 1991 PL19, 1991PL19, 1997 EK53, 1997EK53, 28110, J77E02T, J91P19L, J97E53K, J98S30G

All data for this body: [vot]

MPC data
Name (number) 1998 SG30 (28110)
a 2.21594
e 0.10442
i / sin(i) 2.2864 / 0.03989
q 1.98456
Q 2.44733
ω 223.5561
Node 15.9852
m 142.8701
n 0.2988
Epoch 2460800.5
nobs 1403
nopp 21
Years observed 1977-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.216
ep 0.122
sin(ip) 0.035
G 0.150
H 16.050
Mass
D 3.85 0.096
pV 0.061 0.0066
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 1.944
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2165 0.1221 0.0349 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.39 1.070 1.070 Masiero 2020PSJ.....1....5M NEATM
3.50 0.740 0.740 Masiero 2021PSJ.....2..162M NEATM
3.86 0.097 0.097 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.060 0.0068 0.0068 Masiero 2011ApJ...741...68M NEATM
0.061 0.0250 0.0440 Masiero 2021PSJ.....2..162M NEATM
0.067 0.0490 0.0490 Masiero 2020PSJ.....1....5M 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
16.05 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X 0.324 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT