Chaikin

12539, 1981 UA9, 1981UA9, 1997 EV48, 1997EV48, 1998 OP2, 1998OP2, J81U09A, J97E48V, J98O02P

All data for this body: [vot]

MPC data
Name (number) Chaikin (12539)
a 2.73537
e 0.06006
i / sin(i) 3.7298 / 0.06505
q 2.57109
Q 2.89965
ω 303.2031
Node 296.5783
m 32.9855
n 0.2179
Epoch 2460800.5
nobs 4308
nopp 24
Years observed 1981-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent Nemesis (128)
 
ap 2.735
ep 0.087
sin(ip) 0.084
G 0.150
H 13.860
Mass
D 8.63 0.100
pV 0.086 0.0150
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 6.874
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
128 Nemesis 504 Nemesis -1.1500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7353 0.0872 0.0836 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.63 0.100 0.100 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.086 0.0150 0.0150 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
13.86 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
B 0.995 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.86 Bus VIS Carvano 2010A&A...510A..43C PHOT
C X 0.5257 0.4950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.6809 0.4950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT