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JPL Small-Body Database Browser
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3660 Lazarev (1978 QX2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003660
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08202556382582633 3.645e-08  
a 3.220356858833422 1.9502e-08 au
q 2.956205271767244 1.1767e-07 au
i 7.787488629410482 4.6495e-06 deg
node 354.9278605826348 2.6586e-05 deg
peri 215.7566499602739 3.6964e-05 deg
M 144.0229335809142 2.6128e-05 deg
tp 2457756.031257806238
(2017-Jan-02.53125781)
0.0001521 TDB
period 2110.835681728131
5.78
1.9174e-05
5.25e-08
d
yr
n .1705485666725464 1.5492e-09 deg/d
Q 3.484508445899601 2.1101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3249  
   data-arc span      25163 days (68.89 yr)  
   first obs. used      1950-12-09  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38702  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:28:29  

Additional Information
 Earth MOID = 1.95616 au 
 Jupiter MOID = 1.51015 au 
 T_jup = 3.169 
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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 11.7   n/a MPO350830  
diameter diameter 25.830 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3660 Lazarev (1978 QX2)          Discovered 1978-Aug-31 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1978 QX2 = 1979 WR2 = 1982 GF = 1985 XM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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