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32956 (1996 HR18)
Classification: Main-belt Asteroid          SPK-ID: 2032956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811571996726759 3.8479e-08  
a 2.394021876071797 9.238e-09 au
q 1.960327577047505 9.1446e-08 au
i 2.004926596119593 3.8639e-06 deg
node 221.3364864658751 0.0001253 deg
peri 105.3402906979681 0.00012582 deg
M 350.3850339004754 1.001e-05 deg
tp 2458636.635648685173
(2019-Jun-02.13564869)
3.7632e-05 TDB
period 1352.977576000558
3.70
7.8313e-06
2.144e-08
d
yr
n .2660797979107464 1.5401e-09 deg/d
Q 2.82771617509609 1.0912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      938  
   data-arc span      9538 days (26.11 yr)  
   first obs. used      1993-09-16  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54283  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:28:30  

Additional Information
 Earth MOID = .948982 au 
 Jupiter MOID = 2.50658 au 
 T_jup = 3.507 
[ 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 15.4   n/a MPO431871  
diameter diameter 4.691 km 0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

32956 (1996 HR18)          Discovered 1996-Apr-18 by Elst, E. W. at La Silla
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 HR18 = 1993 SN11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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