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71119 (1999 XJ161)
Classification: Main-belt Asteroid          SPK-ID: 2071119
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189137184736949 5.006e-08  
a 2.666110843443235 1.8507e-08 au
q 2.161850144317729 1.3332e-07 au
i 12.5708848532143 5.8172e-06 deg
node 319.9554124642595 2.2564e-05 deg
peri 29.89652581739546 2.6711e-05 deg
M 343.7373148427292 1.7788e-05 deg
tp 2459072.329936443370
(2020-Aug-10.82993644)
7.9046e-05 TDB
period 1590.068114185441
4.35
1.6556e-05
4.533e-08
d
yr
n .2264053953339103 2.3574e-09 deg/d
Q 3.17037154256874 2.2007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1717  
   data-arc span      7717 days (21.13 yr)  
   first obs. used      1998-06-26  
   last obs. used      2019-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40095  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:21:00  

Additional Information
 Earth MOID = 1.1634 au 
 Jupiter MOID = 2.26962 au 
 T_jup = 3.324 
[ 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 13.6   n/a MPO436280  
diameter diameter 5.895 km 0.279 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71119 (1999 XJ161)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XJ161 = 1998 RQ20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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