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129630 (1998 HK32)
Classification: Main-belt Asteroid          SPK-ID: 2129630
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714000022938591 4.326e-08  
a 2.545174737552853 1.1219e-08 au
q 2.108931781698022 1.1154e-07 au
i 4.219774242995849 4.1518e-06 deg
node 205.5123645436823 6.2674e-05 deg
peri 343.3279324218935 6.3831e-05 deg
M 169.4500367014999 1.4554e-05 deg
tp 2458302.405849032952
(2018-Jul-02.90584903)
5.7418e-05 TDB
period 1483.115018681567
4.06
9.8061e-06
2.685e-08
d
yr
n .2427323541771065 1.6049e-09 deg/d
Q 2.981417693407684 1.3142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      10245 days (28.05 yr)  
   first obs. used      1991-09-09  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57504  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 15:17:46  

Additional Information
 Earth MOID = 1.10992 au 
 Jupiter MOID = 1.98016 au 
 T_jup = 3.419 
[ 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 16.0   n/a MPO436628  
diameter diameter 1.630 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.318   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129630 (1998 HK32)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1998 HK32 = 2002 EF71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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