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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .068589826786857 7.2109e-08  
a 2.741263380160448 1.9106e-08 au
q 2.553240599738088 1.9511e-07 au
i 6.086679538887334 5.8012e-06 deg
node 67.16495336253166 6.5121e-05 deg
peri 260.1409468009978 8.5433e-05 deg
M 181.497786651751 5.8465e-05 deg
tp 2459422.488380339024
(2021-Jul-26.98838034)
0.00027245 TDB
period 1657.771135558592
4.54
1.7332e-05
4.745e-08
d
yr
n .2171590470349798 2.2704e-09 deg/d
Q 2.929286160582807 2.0417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      10304 days (28.21 yr)  
   first obs. used      1990-12-19  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:40:24  

Additional Information
 Earth MOID = 1.54946 au 
 Jupiter MOID = 2.28895 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 15.3   n/a MPO436279  
rotation period rot_per 4.69449 h n/a LCDB (Rev. 2019-January); 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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