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102748 (1999 VL117)
Classification: Outer Main-belt Asteroid          SPK-ID: 2102748
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739211838685938 5.3756e-08  
a 3.215099147722055 3.22e-08 au
q 2.655925297695328 1.8617e-07 au
i 1.767115612740137 4.9954e-06 deg
node 129.7847900752233 0.00020855 deg
peri 139.8682004193751 0.00020927 deg
M 322.6440938502186 2.1121e-05 deg
tp 2459418.997643371715
(2021-Jul-23.49764337)
0.00012556 TDB
period 2105.66841287232
5.77
3.1634e-05
8.661e-08
d
yr
n .1709670894995892 2.5684e-09 deg/d
Q 3.774272997748783 3.7801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      411  
   data-arc span      8436 days (23.10 yr)  
   first obs. used      1997-04-16  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5876  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:52:53  

Additional Information
 Earth MOID = 1.63832 au 
 Jupiter MOID = 1.33128 au 
 T_jup = 3.166 
[ 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 15.49   n/a E2021B55  
diameter diameter 4.904 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102748 (1999 VL117)          Discovered 1999-Nov-09 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 VL117 = 1999 VQ229 = 2003 GE27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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