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49922 (1999 XP174)
Classification: Main-belt Asteroid          SPK-ID: 2049922
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .167630285889986 3.7061e-08  
a 2.417985588667194 1.2207e-08 au
q 2.012657973161046 9.0437e-08 au
i 9.472435754707332 4.5728e-06 deg
node 80.22458855258387 2.1141e-05 deg
peri 310.1641389524435 2.5395e-05 deg
M 216.0904030604345 1.7608e-05 deg
tp 2459549.492289737461
(2021-Nov-30.99228974)
7.0285e-05 TDB
period 1373.34290769005
3.76
1.04e-05
2.847e-08
d
yr
n .2621340948310694 1.9851e-09 deg/d
Q 2.823313204173342 1.4253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      8495 days (23.26 yr)  
   first obs. used      1997-04-15  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:30:08  

Additional Information
 Earth MOID = 1.03383 au 
 Jupiter MOID = 2.62322 au 
 T_jup = 3.478 
[ 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 15.4   n/a MPO468370  

49922 (1999 XP174)          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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