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129712 (1998 TH3)
Classification: Main-belt Asteroid          SPK-ID: 2129712
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3041416377178143 5.3233e-08  
a 2.550306636808982 1.2606e-08 au
q 1.774652199607287 1.3476e-07 au
i 12.44445493463077 4.5472e-06 deg
node 32.43876716581264 2.5798e-05 deg
peri 319.5763570568604 2.7397e-05 deg
M 125.6331673612579 1.5989e-05 deg
tp 2458481.354807375845
(2018-Dec-28.85480738)
6.2866e-05 TDB
period 1487.602941723881
4.07
1.103e-05
3.02e-08
d
yr
n .2420000592246884 1.7943e-09 deg/d
Q 3.325961074010676 1.644e-08 au
  Orbit Determination Parameters
   # obs. used (total)      420  
   data-arc span      9241 days (25.30 yr)  
   first obs. used      1994-10-13  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:05:31  

Additional Information
 Earth MOID = .790525 au 
 Jupiter MOID = 2.17658 au 
 T_jup = 3.343 
[ 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 15.9   n/a MPO453775  
diameter diameter 4.184 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129712 (1998 TH3)          Discovered 1998-Oct-14 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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