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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1711311894932287 4.7567e-08  
a 2.265254950915861 1.0971e-08 au
q 1.877599176660204 1.073e-07 au
i 1.123625227876823 4.198e-06 deg
node 307.2539240834434 0.00026103 deg
peri 254.0076656539825 0.00026135 deg
M 251.0362513655439 1.807e-05 deg
tp 2459377.423828921765
(2021-Jun-11.92382892)
6.4484e-05 TDB
period 1245.300204080233
3.41
9.0467e-06
2.477e-08
d
yr
n .2890869196202313 2.1001e-09 deg/d
Q 2.652910725171518 1.2848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      8858 days (24.25 yr)  
   first obs. used      1995-08-27  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5799  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:47:29  

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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