1995 SP18

1995SP18, 2001 TD97, 2001TD97, D4375, J95S18P, K01T97D

All data for this body: [vot]

MPC data
Name (number) 1995 SP18 (134375)
a 3.23106
e 0.13034
i / sin(i) 5.2925 / 0.09224
q 2.80993
Q 3.65219
ω 311.6017
Node 7.5468
m 77.5835
n 0.1697
Epoch 2460800.5
nobs 968
nopp 19
Years observed 1993-2025
rms 0.86
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.212
ep 0.141
sin(ip) 0.096
G 0.150
H 14.870
Mass
D 4.99 1.048
pV 0.123 0.0326
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.436
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2124 0.1415 0.0960 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.99 1.048 1.048 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.123 0.0326 0.0326 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
14.87 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 0.906 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT