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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08155064070111445 3.584e-08  
a 3.221766104318287 1.8947e-08 au
q 2.959029014321997 1.1636e-07 au
i 7.785619419603069 4.3698e-06 deg
node 354.9181229883469 2.5702e-05 deg
peri 215.7894989668432 3.5447e-05 deg
M 212.194564386799 2.5457e-05 deg
tp 2459867.716123787051
(2022-Oct-15.21612379)
0.00015159 TDB
period 2112.221402874137
5.78
1.8632e-05
5.101e-08
d
yr
n .1704366784230771 1.5035e-09 deg/d
Q 3.484503194314577 2.0492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3556  
   data-arc span      25531 days (69.90 yr)  
   first obs. used      1950-12-09  
   last obs. used      2020-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37557  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:13:22  

Additional Information
 Earth MOID = 1.95874 au 
 Jupiter MOID = 1.5089 au 
 T_jup = 3.169 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456925.5 (2014-Sep-25.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08386747856439909 3.5241e-08  
q 2.948638751230308 1.1441e-07 au
tp 2457765.666791022905
(2017-Jan-12.16679102)
0.00014544 TDB
node 354.9729536166148 2.5684e-05 deg
peri 217.6421789021437 3.5306e-05 deg
i 7.793365356517771 4.3721e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3556  
   data-arc span      25531 days (69.90 yr)  
   first obs. used      1950-12-09  
   last obs. used      2020-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37557  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:13:22  

Additional Information
 Jupiter MOID = 1.5089 au 
 T_jup = 3.169 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.241909843669245E-15 -3.985437775984896E-15 -1.344565572595266E-12 -2.719147686919571E-15 -2.128862653478399E-13 -1.943038908037809E-16
q -3.985437775984896E-15 1.30888877928512E-14 4.76319702664075E-12 8.533626039737009E-15 7.359297999693974E-13 1.030962407419982E-15
tp -1.344565572595266E-12 4.76319702664075E-12 2.115270055153961E-8 6.328217735384216E-12 3.532330468939589E-9 1.390876401297709E-12
node -2.719147686919571E-15 8.533626039737009E-15 6.328217735384216E-12 6.596708717011752E-10 -6.522844222598776E-10 -6.409301821153964E-12
peri -2.128862653478399E-13 7.359297999693974E-13 3.532330468939589E-9 -6.522844222598776E-10 1.246505061971821E-9 6.537487448225969E-12
i -1.943038908037809E-16 1.030962407419982E-15 1.390876401297709E-12 -6.409301821153964E-12 6.537487448225969E-12 1.911483078499033E-11

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)  
rotation period rot_per 6.9974 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

[ show close-approach data ]
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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