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192797 (1999 US56)
Classification: Main-belt Asteroid          SPK-ID: 2192797
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1794210182852163 5.4192e-08  
a 2.720000276110461 2.0453e-08 au
q 2.231975056834653 1.4372e-07 au
i 8.512420201272587 5.3478e-06 deg
node 252.4818266525914 4.0681e-05 deg
peri 84.19164315561348 4.3929e-05 deg
M 293.3910978366276 1.9467e-05 deg
tp 2459503.666789073137
(2021-Oct-16.16678907)
9.0893e-05 TDB
period 1638.520385738238
4.49
1.8481e-05
5.06e-08
d
yr
n .2197104187005897 2.4781e-09 deg/d
Q 3.20802549538627 2.4122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      9476 days (25.94 yr)  
   first obs. used      1994-06-12  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58821  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:17:36  

Additional Information
 Earth MOID = 1.24039 au 
 Jupiter MOID = 2.2406 au 
 T_jup = 3.320 
[ 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 15.74   n/a E2021B55  
diameter diameter 4.914 km 1.686 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192797 (1999 US56)          Discovered 1999-Oct-28 by CSS at Catalina
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1999 US56 = 2004 YV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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