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2702 Batrakov (1978 SZ2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2002702
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1000584724661629 3.7406e-08  
a 3.407268567826902 2.2049e-08 au
q 3.066342479648172 1.3233e-07 au
i 1.61610027517885 4.064e-06 deg
node 243.1872933725541 0.00014624 deg
peri 323.8507747073103 0.0001476 deg
M 350.3696715727332 2.0774e-05 deg
tp 2459061.953493232375
(2020-Jul-31.45349323)
0.00013271 TDB
period 2297.248503074538
6.29
2.2299e-05
6.105e-08
d
yr
n .1567092108312146 1.5211e-09 deg/d
Q 3.748194656005632 2.4255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2386  
   data-arc span      17700 days (48.46 yr)  
   first obs. used      1971-08-19  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45666  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:28:37  

Additional Information
 Earth MOID = 2.06195 au 
 Jupiter MOID = 1.2236 au 
 T_jup = 3.137 
[ 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 11.8   n/a MPO502179  
diameter diameter 24.927 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.15 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:
[Warner, B.D. (2018) Minor Planet Bull. 45, 39-45.]
geometric albedo albedo 0.065   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2702 Batrakov (1978 SZ2)          Discovered 1978-Sep-26 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1978 SZ2 = 1971 QU2 = 1972 TU3 = 1976 JQ1 = 1981 AO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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