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118430 (1999 TZ171)
Classification: Outer Main-belt Asteroid          SPK-ID: 2118430
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 .1692355287935955 4.7063e-08  
a 3.20437783266024 2.5681e-08 au
q 2.662083255695509 1.5151e-07 au
i 3.359187886247283 5.0548e-06 deg
node 79.98009835012427 8.5709e-05 deg
peri 323.5649362871889 8.678e-05 deg
M 209.5230195670461 1.6179e-05 deg
tp 2459876.252875441444
(2022-Oct-23.75287544)
0.00010084 TDB
period 2095.144614490659
5.74
2.5186e-05
6.896e-08
d
yr
n .1718258479677871 2.0656e-09 deg/d
Q 3.746672409624972 3.0027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      463  
   data-arc span      7561 days (20.70 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53313  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:03:04  

Additional Information
 Earth MOID = 1.67209 au 
 Jupiter MOID = 1.65736 au 
 T_jup = 3.168 
[ 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 15.2   n/a MPO436569  
diameter diameter 4.352 km 1.407 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.093   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118430 (1999 TZ171)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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