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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .259856745525653 3.1394e-08  
a 2.639454229173514 7.5962e-09 au
q 1.953574243216563 8.4206e-08 au
i 4.229058499382661 3.7602e-06 deg
node 359.4585094388731 3.9487e-05 deg
peri 20.07932381583696 4.0006e-05 deg
M 85.31996570629538 5.7144e-06 deg
tp 2458829.291594838698
(2019-Dec-11.79159484)
2.4616e-05 TDB
period 1566.280820108303
4.29
6.7615e-06
1.851e-08
d
yr
n .2298438411415312 9.9221e-10 deg/d
Q 3.325334215130464 9.5701e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2285  
   data-arc span      28616 days (78.35 yr)  
   first obs. used      1942-09-14  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4879  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:16:45  

Additional Information
 Earth MOID = .955134 au 
 Jupiter MOID = 2.14654 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 13.62   n/a E2020-QM5  
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

[ show close-approach data ]
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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