1998 SG136

1998SG136, 1998 SX24, 1998SX24, 2001 EQ21, 2001EQ21, 40221, J98S24X, J98SD6G, K01E21Q

All data for this body: [vot]

MPC data
Name (number) 1998 SG136 (40221)
a 3.03354
e 0.11339
i / sin(i) 16.1210 / 0.27767
q 2.68957
Q 3.37750
ω 113.4413
Node 182.5930
m 82.2220
n 0.1865
Epoch 2460800.5
nobs 2193
nopp 23
Years observed 1998-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.034
ep 0.097
sin(ip) 0.281
G 0.150
H 13.900
Mass
D 12.33 0.215
pV 0.046 0.0065
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 9.882
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0336 0.0970 0.2812 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.93 2.750 2.750 Masiero 2020PSJ.....1....5M NEATM
12.33 0.216 0.216 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.041 0.0210 0.0210 Masiero 2020PSJ.....1....5M NEATM
0.046 0.0068 0.0068 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
13.90 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
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.93 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.4627 0.4840 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.5410 0.4840 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.4699 0.4840 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT