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52471 (1995 SG4)
Classification: Main-belt Asteroid          SPK-ID: 2052471
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2269128802899792 6.7909e-08  
a 2.286128338920225 1.0204e-08 au
q 1.767376372823291 1.5855e-07 au
i 21.68903104879028 8.6872e-06 deg
node 312.5499156915889 9.4861e-06 deg
peri 42.117114334 1.8168e-05 deg
M 115.4449144034445 1.4596e-05 deg
tp 2458795.624364221888
(2019-Nov-08.12436422)
5.0262e-05 TDB
period 1262.552184592129
3.46
8.4534e-06
2.314e-08
d
yr
n .2851367289157232 1.9091e-09 deg/d
Q 2.804880305017159 1.252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      885  
   data-arc span      17073 days (46.74 yr)  
   first obs. used      1974-06-23  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48912  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:18:33  

Additional Information
 Earth MOID = .797745 au 
 Jupiter MOID = 2.68917 au 
 T_jup = 3.476 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO400510  
diameter diameter 2.371 km 0.411 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.314   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52471 (1995 SG4)          Discovered 1995-Sep-26 by Spahr, T. B. at Catalina Station
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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