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2370 van Altena (1965 LA)
Classification: Main-belt Asteroid          SPK-ID: 2002370
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1823071010601633 3.7118e-08  
a 2.714448538757961 1.0192e-08 au
q 2.219585294680001 1.0207e-07 au
i 8.26494944857836 4.2819e-06 deg
node 10.3204300859774 2.1768e-05 deg
peri 315.3250689066974 2.4066e-05 deg
M 67.75638031056297 9.2204e-06 deg
tp 2458693.054215954420
(2019-Jul-28.55421595)
4.2015e-05 TDB
period 1633.506420341555
4.47
9.2e-06
2.519e-08
d
yr
n .2203848087262041 1.2412e-09 deg/d
Q 3.209311782835921 1.205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2324  
   data-arc span      23662 days (64.78 yr)  
   first obs. used      1955-04-16  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47007  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:19:56  

Additional Information
 Earth MOID = 1.2174 au 
 Jupiter MOID = 2.18012 au 
 T_jup = 3.322 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0   n/a MPO439086  
diameter diameter 15.032 km 0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Cb   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2370 van Altena (1965 LA)          Discovered 1965-Jun-10 by Klemola, A. R. at El Leoncito
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1965 LA = 1974 OY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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