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JPL Small-Body Database Browser
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97037 (1999 US8)
Classification: Main-belt Asteroid          SPK-ID: 2097037
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .143185342166532 4.2662e-08  
a 2.697116263202648 1.7351e-08 au
q 2.310928748193059 1.1251e-07 au
i 14.24082189660497 6.5177e-06 deg
node 40.48168841285176 2.0019e-05 deg
peri 66.07883750731375 3.1199e-05 deg
M 187.3796342586601 2.6085e-05 deg
tp 2459776.278001337387
(2022-Jul-15.77800134)
0.00012117 TDB
period 1617.886043063668
4.43
1.5612e-05
4.274e-08
d
yr
n .22251258149078 2.1472e-09 deg/d
Q 3.083303778212237 1.9835e-08 au
  Orbit Determination Parameters
   # obs. used (total)      732  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1999-10-10  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:11:08  

Additional Information
 Earth MOID = 1.36766 au 
 Jupiter MOID = 2.22532 au 
 T_jup = 3.311 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO302544  
diameter diameter 2.833 km 1.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.241   0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97037 (1999 US8)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

Alternate Designations
 1999 US8 = 2001 FD138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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