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1851 Lacroute (1950 VA)
Classification: Main-belt Asteroid          SPK-ID: 2001851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1920925142571604 3.5367e-08  
a 3.104859093686322 1.3815e-08 au
q 2.508438903965908 1.1057e-07 au
i 1.664793336856047 4.0299e-06 deg
node 24.74345465709933 0.00011949 deg
peri 342.8153017316077 0.00011985 deg
M 266.5410046240165 1.1285e-05 deg
tp 2459519.276001890564
(2021-Oct-31.77600189)
6.45e-05 TDB
period 1998.302677332175
5.47
1.3337e-05
3.651e-08
d
yr
n .1801528887909095 1.2024e-09 deg/d
Q 3.701279283406735 1.6469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2274  
   data-arc span      25423 days (69.60 yr)  
   first obs. used      1950-11-09  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49379  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:37:47  

Additional Information
 Earth MOID = 1.50745 au 
 Jupiter MOID = 1.76092 au 
 T_jup = 3.191 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO473789  
diameter diameter 17.024 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1851 Lacroute (1950 VA)          Discovered 1950-Nov-09 by Boyer, L. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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