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2755 Avicenna (1973 SJ4)
Classification: Main-belt Asteroid          SPK-ID: 2002755
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2577644685234064 2.7645e-08  
a 2.848840212873001 1.2148e-08 au
q 2.114510429493684 8.3932e-08 au
i 4.56482974532279 9.5933e-07 deg
node 232.3324426766446 9.8303e-06 deg
peri 148.9573212378997 9.6377e-06 deg
M 289.2118682386316 5.7676e-06 deg
tp 2459545.849246834728
(2021-Nov-27.34924683)
2.9749e-05 TDB
period 1756.307530188993
4.81
1.1234e-05
3.076e-08
d
yr
n .2049754919409024 1.3111e-09 deg/d
Q 3.583169996252319 1.528e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1812  
   data-arc span      17994 days (49.26 yr)  
   first obs. used      1971-05-14  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48607  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:12:49  

Additional Information
 Earth MOID = 1.11794 au 
 Jupiter MOID = 1.89443 au 
 T_jup = 3.252 
[ 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 13.37   n/a E2021B10  
diameter diameter 11.841 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2755 Avicenna (1973 SJ4)          Discovered 1973-Sep-26 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1973 SJ4 = 1978 UX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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