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4777 Aksenov (1976 SM2)
Classification: Main-belt Asteroid          SPK-ID: 2004777
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302702700939314 3.4144e-08  
a 2.17460062438663 5.8776e-09 au
q 1.891314813701352 7.3591e-08 au
i 1.325251224092356 3.6063e-06 deg
node 194.8598536601958 0.00014819 deg
peri 168.3640452093663 0.00014907 deg
M 222.4306559471344 1.8712e-05 deg
tp 2459448.096678632287
(2021-Aug-21.59667863)
6.1775e-05 TDB
period 1171.298776024562
3.21
4.7487e-06
1.3e-08
d
yr
n .3073511279691212 1.2461e-09 deg/d
Q 2.457886435071908 6.6432e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2277  
   data-arc span      15921 days (43.59 yr)  
   first obs. used      1976-09-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47707  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:12:32  

Additional Information
 Earth MOID = .888768 au 
 Jupiter MOID = 2.9885 au 
 T_jup = 3.674 
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Orbital Elements at Epoch 2456680.5 (2014-Jan-23.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302226223056793 3.4064e-08  
q 1.891587607300605 7.3415e-08 au
tp 2457103.841870359308
(2015-Mar-22.34187036)
5.7551e-05 TDB
node 194.9003836163505 0.00014845 deg
peri 168.0486701842052 0.00014933 deg
i 1.323062192535434 3.605e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2277  
   data-arc span      15921 days (43.59 yr)  
   first obs. used      1976-09-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47707  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:12:32  

Additional Information
 Jupiter MOID = 2.9885 au 
 T_jup = 3.674 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.160384448876307E-15 -2.494872453036682E-15 8.332691432076021E-13 2.114387443684664E-16 2.136201478132174E-13 -1.695599736162361E-16
q -2.494872453036682E-15 5.389813237145886E-15 -1.698664701053929E-12 -5.146614196889685E-17 -4.354244491820618E-13 3.580620717770941E-16
tp 8.332691432076021E-13 -1.698664701053929E-12 3.312133060141204E-9 -1.547012225582495E-12 9.406365502972088E-10 -8.919114161935918E-13
node 2.114387443684664E-16 -5.146614196889685E-17 -1.547012225582495E-12 2.203672932755779E-8 -2.203110707180451E-8 1.249376631466504E-10
peri 2.136201478132174E-13 -4.354244491820618E-13 9.406365502972088E-10 -2.203110707180451E-8 2.229878634101828E-8 -1.251636055397514E-10
i -1.695599736162361E-16 3.580620717770941E-16 -8.919114161935918E-13 1.249376631466504E-10 -1.251636055397514E-10 1.299607233519586E-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 14.1   n/a MPO358676  
diameter diameter 3.861 km 0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.298   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4777 Aksenov (1976 SM2)          Discovered 1976-Sep-24 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1976 SM2 = 1979 OQ15 = 1989 UX2 = 2010 KR130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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