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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09992304267633573 3.7237e-08  
a 3.406803658406739 1.9242e-08 au
q 3.066385471057866 1.319e-07 au
i 1.616170136873136 3.7019e-06 deg
node 243.1848253296333 0.00014 deg
peri 323.9135933057631 0.00014122 deg
M 21.66695627195567 1.7681e-05 deg
tp 2459062.266122475503
(2020-Jul-31.76612248)
0.0001128 TDB
period 2296.778342292152
6.29
1.9459e-05
5.328e-08
d
yr
n .1567412899064196 1.328e-09 deg/d
Q 3.747221845755613 2.1165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2745  
   data-arc span      18077 days (49.49 yr)  
   first obs. used      1971-08-19  
   last obs. used      2021-02-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43386  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:08:49  

Additional Information
 Earth MOID = 2.06107 au 
 Jupiter MOID = 1.22347 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 11.82   n/a E2021B10  
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. 2020-October); 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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