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JPL Small-Body Database Browser
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71039 (1999 XZ73)
Classification: Main-belt Asteroid          SPK-ID: 2071039
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1939549552864174 4.3109e-08  
a 2.758371886077711 1.4109e-08 au
q 2.223371990250198 1.2265e-07 au
i 3.394048619577029 4.2661e-06 deg
node 84.3500639841541 9.6649e-05 deg
peri 347.1529557017341 9.7865e-05 deg
M 174.6080914941623 1.505e-05 deg
tp 2458188.904709707956
(2018-Mar-11.40470971)
6.7856e-05 TDB
period 1673.31480462865
4.58
1.2838e-05
3.515e-08
d
yr
n .2151418244816718 1.6507e-09 deg/d
Q 3.293371781905224 1.6845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      7555 days (20.68 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49335  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:42:49  

Additional Information
 Earth MOID = 1.23817 au 
 Jupiter MOID = 1.99699 au 
 T_jup = 3.312 
[ 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 14.7   n/a MPO324923  
rotation period rot_per 3.23 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

71039 (1999 XZ73)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XZ73 = 2001 FG117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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