1999 XG20

1999XG20, 2001 AG42, 2001AG42, 70969, J99X20G, K01A42G

All data for this body: [vot]

MPC data
Name (number) 1999 XG20 (70969)
a 2.60209
e 0.11446
i / sin(i) 13.1056 / 0.22675
q 2.30424
Q 2.89993
ω 98.7804
Node 52.6654
m 286.5321
n 0.2348
Epoch 2460800.5
nobs 1966
nopp 19
Years observed 1999-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.601
ep 0.151
sin(ip) 0.216
G 0.150
H 14.680
Mass
D 3.06 0.617
pV 0.395 0.0770
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 1.164
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 502 Eunomia -0.3200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6009 0.1508 0.2158 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.06 0.617 0.617 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.395 0.0770 0.0770 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
14.68 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 0.194 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT