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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2580661923649775 3.7986e-08  
a 2.846974976938719 1.3516e-08 au
q 2.112266984881774 1.1287e-07 au
i 4.567702951982698 3.9278e-06 deg
node 232.3560058931106 4.8981e-05 deg
peri 149.082208283181 4.9542e-05 deg
M 248.0576267427201 1.006e-05 deg
tp 2459546.089383780542
(2021-Nov-27.58938378)
5.1783e-05 TDB
period 1754.582938040593
4.80
1.2495e-05
3.421e-08
d
yr
n .2051769638213997 1.4611e-09 deg/d
Q 3.581682968995664 1.7004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      17932 days (49.10 yr)  
   first obs. used      1971-05-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48327  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:26  

Additional Information
 Earth MOID = 1.11703 au 
 Jupiter MOID = 1.89448 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 13.3   n/a MPO384775  
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

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