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102938 (1999 XU47)
Classification: Main-belt Asteroid          SPK-ID: 2102938
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172510055355825 4.2275e-08  
a 2.346675791519841 9.9016e-09 au
q 1.836858116146147 9.9898e-08 au
i 3.133553569291199 3.9496e-06 deg
node 73.1946377126458 8.4652e-05 deg
peri 275.7150200646621 8.5104e-05 deg
M 358.8578538023967 1.1588e-05 deg
tp 2459204.665788954111
(2020-Dec-21.16578895)
4.2282e-05 TDB
period 1313.040332863553
3.59
8.3104e-06
2.275e-08
d
yr
n .2741728422118546 1.7353e-09 deg/d
Q 2.856493466893535 1.2053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      8734 days (23.91 yr)  
   first obs. used      1997-02-03  
   last obs. used      2021-01-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53771  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:20  

Additional Information
 Earth MOID = .832051 au 
 Jupiter MOID = 2.57322 au 
 T_jup = 3.526 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456714.5 (2014-Feb-26.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2160707618786935 4.1996e-08  
q 1.83967568526432 9.9111e-08 au
tp 2456577.392832996368
(2013-Oct-11.89283300)
3.434e-05 TDB
node 73.31480368741535 8.4489e-05 deg
peri 275.4618996505395 8.4958e-05 deg
i 3.136064016883718 3.9528e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      8734 days (23.91 yr)  
   first obs. used      1997-02-03  
   last obs. used      2021-01-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53771  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:20  

Additional Information
 Jupiter MOID = 2.57322 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.763644180472628E-15 -4.149720969589867E-15 9.207605539665054E-14 4.606321572002893E-15 -1.853369814008728E-14 -8.70313509502969E-16
q -4.149720969589867E-15 9.822971169875094E-15 -1.253534481712772E-13 -1.032386532390177E-14 6.693037654811374E-14 2.176547169851794E-15
tp 9.207605539665054E-14 -1.253534481712772E-13 1.179239846766034E-9 -3.621263113959646E-13 3.276342035051326E-10 6.42245580473648E-14
node 4.606321572002893E-15 -1.032386532390177E-14 -3.621263113959646E-13 7.138319745152064E-9 -7.127502100530775E-9 -1.06554887918944E-11
peri -1.853369814008728E-14 6.693037654811374E-14 3.276342035051326E-10 -7.127502100530775E-9 7.217845613754255E-9 1.0682094696755E-11
i -8.70313509502969E-16 2.176547169851794E-15 6.42245580473648E-14 -1.06554887918944E-11 1.0682094696755E-11 1.562439090257015E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.07   n/a E2021B55  

102938 (1999 XU47)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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