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4268 Grebenikov (1972 TW3)
Classification: Main-belt Asteroid          SPK-ID: 2004268
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2597341524644771 3.2649e-08  
a 2.639115412000292 7.8016e-09 au
q 1.953647007208457 8.7826e-08 au
i 4.228900363983324 3.8735e-06 deg
node 359.4643074241682 4.0184e-05 deg
peri 20.06078849494981 4.0728e-05 deg
M 39.37225186698273 5.7196e-06 deg
tp 2458829.232974506264
(2019-Dec-11.73297451)
2.4802e-05 TDB
period 1565.979243098602
4.29
6.9439e-06
1.901e-08
d
yr
n .2298881045751719 1.0194e-09 deg/d
Q 3.324583816792128 9.8279e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2194  
   data-arc span      28536 days (78.13 yr)  
   first obs. used      1942-09-14  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49111  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:52:59  

Additional Information
 Earth MOID = .956556 au 
 Jupiter MOID = 2.14614 au 
 T_jup = 3.343 
[ 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 13.6   n/a MPO502194  
diameter diameter 4.298 km 0.740 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.136   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4268 Grebenikov (1972 TW3)          Discovered 1972-Oct-05 by Smirnova, T. M. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1934-Oct-13 16:54 00:01 Eunom 0.0339759187588467 0.033974392939255 0.0339774471431576 4.11484711604118 4.11484701563303 2427724.203946092 1.37625854652239 502.944852456869 26.9052982909753 81.8572344581126 186826.481681193 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 03:53:05 2020-Nov-13 03:53

Alternate Designations
 1972 TW3 = 1942 RC1 = 1972 RH2 = 1982 BG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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