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102973 (1999 XT74)
Classification: Main-belt Asteroid          SPK-ID: 2102973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1806824651064786 3.9368e-08  
a 2.611098123029532 9.4151e-09 au
q 2.139318477525656 1.0133e-07 au
i 3.659525035034564 5.0378e-06 deg
node 95.82953437142854 5.9192e-05 deg
peri 289.4658993724009 6.1002e-05 deg
M 33.97307404563662 1.2805e-05 deg
tp 2459055.066130071231
(2020-Jul-24.56613007)
5.4831e-05 TDB
period 1541.108499749706
4.22
8.3354e-06
2.282e-08
d
yr
n .2335980886864671 1.2635e-09 deg/d
Q 3.082877768533407 1.1116e-08 au
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      10569 days (28.94 yr)  
   first obs. used      1992-02-09  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53942  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:32:56  

Additional Information
 Earth MOID = 1.14554 au 
 Jupiter MOID = 2.3738 au 
 T_jup = 3.383 
[ 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 15.7   n/a MPO395905  

102973 (1999 XT74)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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