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3602 Lazzaro (1981 DQ2)
Classification: Main-belt Asteroid          SPK-ID: 2003602
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1328354698342528 2.6989e-08  
a 2.265864649395576 6.3294e-09 au
q 1.96487745411229 6.2489e-08 au
i 5.57862361220725 3.2036e-06 deg
node 241.8566534088996 3.4793e-05 deg
peri 232.8562440483641 3.7413e-05 deg
M 231.5113190026593 1.4074e-05 deg
tp 2459445.143289928374
(2021-Aug-18.64328993)
4.9223e-05 TDB
period 1245.803000947046
3.41
5.2199e-06
1.429e-08
d
yr
n .2889702462799752 1.2108e-09 deg/d
Q 2.566851844678862 7.1701e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1965  
   data-arc span      16018 days (43.85 yr)  
   first obs. used      1976-12-18  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46769  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:58:55  

Additional Information
 Earth MOID = .98717 au 
 Jupiter MOID = 2.54515 au 
 T_jup = 3.598 
[ 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 14.1   n/a MPO337280  
diameter diameter 4.091 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.939 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.265   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3602 Lazzaro (1981 DQ2)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 DQ2 = 1976 YR4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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