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71011 (1999 XE45)
Classification: Main-belt Asteroid          SPK-ID: 2071011
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06904396320217758 4.2996e-08  
a 2.742180879577789 1.6412e-08 au
q 2.552849843834506 1.2431e-07 au
i 6.085349820188127 5.4252e-06 deg
node 67.16100682534521 4.73e-05 deg
peri 259.746660861266 6.6325e-05 deg
M 312.2260300253935 4.7983e-05 deg
tp 2459420.605758973117
(2021-Jul-25.10575897)
0.00022145 TDB
period 1658.603487891836
4.54
1.489e-05
4.077e-08
d
yr
n .217050068101314 1.9486e-09 deg/d
Q 2.931511915321073 1.7545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      673  
   data-arc span      10834 days (29.66 yr)  
   first obs. used      1990-12-19  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56635  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:53:27  

Additional Information
 Earth MOID = 1.54789 au 
 Jupiter MOID = 2.28613 au 
 T_jup = 3.338 
[ 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 15.37   n/a E2021B10  
rotation period rot_per 4.69449 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]

71011 (1999 XE45)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XE45 = 2002 LE33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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