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JPL Small-Body Database Browser
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160649 (1999 XR74)
Classification: Main-belt Asteroid          SPK-ID: 2160649
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .298242834523803 3.9785e-08  
a 2.590786840609678 1.708e-08 au
q 1.818103229619279 1.0449e-07 au
i 3.5400943354145 4.7745e-06 deg
node 229.4107587578215 9.113e-05 deg
peri 169.2838750102113 9.2228e-05 deg
M 257.2837367967853 1.9344e-05 deg
tp 2459035.092934387177
(2020-Jul-04.59293439)
8.5634e-05 TDB
period 1523.161488749398
4.17
1.5063e-05
4.124e-08
d
yr
n .2363505134938649 2.3373e-09 deg/d
Q 3.363470451600076 2.2175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      6741 days (18.46 yr)  
   first obs. used      1999-10-12  
   last obs. used      2018-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5051  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-05 15:40:57  

Additional Information
 Earth MOID = .825473 au 
 Jupiter MOID = 2.06444 au 
 T_jup = 3.353 
[ 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 15.7   n/a MPO417855  

160649 (1999 XR74)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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