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JPL Small-Body Database Browser
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2143 Jimarnold (1973 SA)
Classification: Main-belt Asteroid          SPK-ID: 2002143
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2345634561980086 3.569e-08  
a 2.28018848374172 6.8415e-09 au
q 1.745339592212366 8.0849e-08 au
i 8.365694041099568 3.8604e-06 deg
node 17.39128549876136 2.2203e-05 deg
peri 352.3841182352042 2.3399e-05 deg
M 197.0162612996934 1.0126e-05 deg
tp 2459569.872285578068
(2021-Dec-21.37228558)
3.7263e-05 TDB
period 1257.634807267548
3.44
5.6601e-06
1.55e-08
d
yr
n .2862516192456288 1.2883e-09 deg/d
Q 2.815037375271074 8.4463e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1911  
   data-arc span      23754 days (65.03 yr)  
   first obs. used      1955-04-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:35:29  

Additional Information
 Earth MOID = .745607 au 
 Jupiter MOID = 2.64742 au 
 T_jup = 3.555 
[ 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 13.7   n/a MPO473793  
diameter diameter 4.934 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.138   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2143 Jimarnold (1973 SA)          Discovered 1973-Sep-26 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1973 SA = 1980 VZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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