Atacama

18725, 1998 JL3, 1998JL3, 1999 RG111, 1999RG111, J98J03L, J99RB1G

All data for this body: [vot]

MPC data
Name (number) Atacama (18725)
a 2.75934
e 0.13185
i / sin(i) 8.8189 / 0.15331
q 2.39551
Q 3.12317
ω 244.6110
Node 196.7427
m 108.4061
n 0.2150
Epoch 2460800.5
nobs 3940
nopp 27
Years observed 1951-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.759
ep 0.126
sin(ip) 0.160
G 0.150
H 13.380
Mass
D 6.05 0.200
pV 0.278 0.0356
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 16.635
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion -0.7400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7592 0.1259 0.1603 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.05 0.200 0.200 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.278 0.0356 0.0356 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
13.38 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
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.9999 1.0000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.82 Bus VIS Carvano 2010A&A...510A..43C PHOT
S Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S S 0.9993 1.0000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT