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173129 (1994 JH2)
Classification: Main-belt Asteroid          SPK-ID: 2173129
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2262461258188482 4.397e-08  
a 2.459176124692835 1.5598e-08 au
q 1.902797053774872 1.0348e-07 au
i 16.14437913441882 5.3088e-06 deg
node 51.01312799019721 1.4864e-05 deg
peri 266.3740724393194 2.0767e-05 deg
M 209.3793671923931 1.8539e-05 deg
tp 2459589.838542391035
(2022-Jan-10.33854239)
7.6512e-05 TDB
period 1408.584410422538
3.86
1.3401e-05
3.669e-08
d
yr
n .2555757378374006 2.4315e-09 deg/d
Q 3.015555195610798 1.9127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      804  
   data-arc span      9410 days (25.76 yr)  
   first obs. used      1994-05-01  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53279  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:59:26  

Additional Information
 Earth MOID = .970046 au 
 Jupiter MOID = 2.46724 au 
 T_jup = 3.402 
[ 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 15.5   n/a MPO266538  
diameter diameter 4.936 km 0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

173129 (1994 JH2)          Discovered 1994-May-01 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1994 JH2 = 2003 YY10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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