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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2597341503080849 3.3064e-08  
a 2.639115412435958 7.8696e-09 au
q 1.953647013221933 8.9024e-08 au
i 4.228900291912557 3.9126e-06 deg
node 359.4643091238802 4.0289e-05 deg
peri 20.06078660555356 4.0839e-05 deg
M 39.37225182133474 5.7305e-06 deg
tp 2458829.232974662420
(2019-Dec-11.73297466)
2.4851e-05 TDB
period 1565.97924348637
4.29
7.0044e-06
1.918e-08
d
yr
n .2298881045182469 1.0283e-09 deg/d
Q 3.324583811649983 9.9136e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2120  
   data-arc span      28266 days (77.39 yr)  
   first obs. used      1942-09-14  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4912  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:08:25  

Additional Information
 Earth MOID = .956556 au 
 Jupiter MOID = 2.14614 au 
 T_jup = 3.343 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456988.5 (2014-Nov-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2620502965580872 3.3427e-08  
q 1.946591227695615 9.0256e-08 au
tp 2457259.066547766400
(2015-Aug-24.56654777)
2.4093e-05 TDB
node 359.7080223649835 4.0003e-05 deg
peri 19.11511765331919 4.0543e-05 deg
i 4.24972145860067 3.9247e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2120  
   data-arc span      28266 days (77.39 yr)  
   first obs. used      1942-09-14  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4912  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:08:25  

Additional Information
 Jupiter MOID = 2.14614 au 
 T_jup = 3.343 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.11737253856433E-15 -3.011412095262338E-15 -1.296981343735774E-13 -7.046597388426027E-15 -2.3532320608925E-14 -1.886730657050527E-15
q -3.011412095262338E-15 8.146155538433554E-15 3.248025771739082E-13 1.748147726274805E-14 5.746902250202507E-14 5.227369542019032E-15
tp -1.296981343735774E-13 3.248025771739082E-13 5.804667089214471E-10 2.049344743168187E-12 1.667111021061282E-10 1.680914026566564E-13
node -7.046597388426027E-15 1.748147726274805E-14 2.049344743168187E-12 1.600237120665181E-9 -1.594319177993586E-9 -1.141065618751404E-13
peri -2.3532320608925E-14 5.746902250202507E-14 1.667111021061282E-10 -1.594319177993586E-9 1.643766136868495E-9 1.19373511236939E-13
i -1.886730657050527E-15 5.227369542019032E-15 1.680914026566564E-13 -1.141065618751404E-13 1.19373511236939E-13 1.54032133872331E-11

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

[ 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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