Landau

02142, 1960 DB, 1960DB, 1972 GA, 1972GA, 1974 SL1, 1974SL1, 1977 EE, 1977EE, J60D00B, J72G00A, J74S01L, J77E00E

All data for this body: [vot]

MPC data
Name (number) Landau (2142)
a 3.16482
e 0.11689
i / sin(i) 0.6648 / 0.01160
q 2.79490
Q 3.53475
ω 31.9438
Node 155.5642
m 158.7772
n 0.1751
Epoch 2460800.5
nobs 4889
nopp 41
Years observed 1951-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.174
ep 0.137
sin(ip) 0.018
G 0.150
H 12.180
Mass
D 20.39 0.230
pV 0.056 0.0065
Value
Rotational Period 19.000
Period quality 2-
Spectral Class C
Spectral Class Score 10.121
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.6600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1743 0.1366 0.0180 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
20.05 4.010 4.010 Ali-Lagoa 2018A&A...612A..85A NEATM
20.13 0.269 0.269 Masiero 2011ApJ...741...68M NEATM
20.70 0.620 0.620 Usui 2011PASJ...63.1117U NEATM
21.31 4.260 4.260 Ali-Lagoa 2018A&A...612A..85A NEATM
21.58 0.660 0.660 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.050 0.0079 0.0079 Masiero 2011ApJ...741...68M NEATM
0.063 0.0250 0.0250 Ali-Lagoa 2018A&A...612A..85A NEATM
0.066 0.0140 0.0140 Masiero 2012ApJ...759L...8M NEATM
0.072 0.0290 0.0290 Ali-Lagoa 2018A&A...612A..85A 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
12.18 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
19.2 2- Synodic Hayes 2017MPBu...44..306H Lightcurve
9.7 1 Synodic Chang 2016ApJS..227...20C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.82 Bus VIS Carvano 2010A&A...510A..43C PHOT
B 0.886 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C C 0.4777 0.3790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6025 0.3790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.2065 0.3790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.4524 0.3790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.6810 0.3790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT