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49868 (1999 XF112)
Classification: Main-belt Asteroid          SPK-ID: 2049868
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .171131181759649 4.7531e-08  
a 2.265254954089736 1.0958e-08 au
q 1.87759919680946 1.0724e-07 au
i 1.123626815013261 4.1978e-06 deg
node 307.2539476548214 0.00026091 deg
peri 254.0076349477947 0.00026123 deg
M 251.0362617724952 1.8042e-05 deg
tp 2459377.423793714549
(2021-Jun-11.92379371)
6.4382e-05 TDB
period 1245.30020669744
3.41
9.0364e-06
2.474e-08
d
yr
n .2890869190126667 2.0977e-09 deg/d
Q 2.652910711370012 1.2834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      899  
   data-arc span      9185 days (25.15 yr)  
   first obs. used      1995-08-27  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5831  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:30:26  

Additional Information
 Earth MOID = .875075 au 
 Jupiter MOID = 2.30834 au 
 T_jup = 3.597 
[ 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 15.8   n/a MPO347864  
rotation period rot_per 33.288 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

49868 (1999 XF112)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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