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JPL Small-Body Database Browser
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49916 (1999 XV171)
Classification: Main-belt Asteroid          SPK-ID: 2049916
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426142559163363 5.2259e-08  
a 2.679147224867291 1.6046e-08 au
q 2.297062636902524 1.4347e-07 au
i 13.84430584787126 4.9152e-06 deg
node 77.42096254922031 2.3663e-05 deg
peri 140.2884401931669 2.9832e-05 deg
M 135.7597834340215 1.8219e-05 deg
tp 2458396.465238990898
(2018-Oct-04.96523899)
7.9896e-05 TDB
period 1601.744702759911
4.39
1.439e-05
3.94e-08
d
yr
n .2247549184209547 2.0191e-09 deg/d
Q 3.061231812832057 1.8334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      7525 days (20.60 yr)  
   first obs. used      1998-09-28  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51049  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:38  

Additional Information
 Earth MOID = 1.30428 au 
 Jupiter MOID = 1.98067 au 
 T_jup = 3.321 
[ 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 14.2   n/a MPO449321  

49916 (1999 XV171)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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