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91998 (1999 VE137)
Classification: Main-belt Asteroid          SPK-ID: 2091998
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1614480457505671 4.1412e-08  
a 3.067454857181236 2.3128e-08 au
q 2.57222026506124 1.1828e-07 au
i .3512716334325781 4.1431e-06 deg
node 309.5800526837234 0.00078938 deg
peri 334.6792205118099 0.00078954 deg
M 123.3399803407406 1.7522e-05 deg
tp 2458724.193870073777
(2019-Aug-28.69387007)
9.2241e-05 TDB
period 1962.301324394608
5.37
2.2193e-05
6.076e-08
d
yr
n .1834580630021559 2.0748e-09 deg/d
Q 3.562689449301232 2.6862e-08 au
  Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      9971 days (27.30 yr)  
   first obs. used      1993-09-18  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53613  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:48:55  

Additional Information
 Earth MOID = 1.5555 au 
 Jupiter MOID = 1.59174 au 
 T_jup = 3.212 
[ 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 15.37   n/a E2021B10  

91998 (1999 VE137)          Discovered 1999-Nov-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 VE137 = 2002 EQ123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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