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JPL Small-Body Database Browser
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393921 (2005 US71)
Classification: Main-belt Asteroid          SPK-ID: 2393921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811754438488794 1.822e-07  
a 3.108872081561747 4.3676e-08 au
q 2.545620802315407 5.5994e-07 au
i 20.58842338205644 2.1365e-05 deg
node 230.7574718271585 1.6667e-05 deg
peri 176.2766573555922 2.3761e-05 deg
M 230.8914504706701 1.737e-05 deg
tp 2459718.550861181601
(2022-May-19.05086118)
0.00010494 TDB
period 2002.178097172819
5.48
4.2192e-05
1.155e-07
d
yr
n .1798041845070321 3.7891e-09 deg/d
Q 3.672123360808086 5.1589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      4990 days (13.66 yr)  
   first obs. used      2005-09-29  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53629  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:53:00  

Additional Information
 Earth MOID = 1.55614 au 
 Jupiter MOID = 1.72694 au 
 T_jup = 3.097 
[ 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 MPO476861  
diameter diameter 3.538 km 0.472 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

393921 (2005 US71)          Discovered 2005-Oct-23 by CSS at Catalina
Reference: Last Updated: 2014-05-15

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