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117887 (2721 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07861346428224861 5.2979e-08  
a 2.868980110084488 2.4702e-08 au
q 2.64343964467388 1.583e-07 au
i 2.956864826250333 5.9485e-06 deg
node 59.70462212636958 0.00011225 deg
peri 297.8019548745364 0.00011849 deg
M 111.4112806652049 3.8431e-05 deg
tp 2458451.191399693423
(2018-Nov-28.69139969)
0.00018827 TDB
period 1774.964751591154
4.86
2.2924e-05
6.276e-08
d
yr
n .2028209290788905 2.6195e-09 deg/d
Q 3.094520575495097 2.6644e-08 au
  Orbit Determination Parameters
   # obs. used (total)      349  
   data-arc span      21651 days (59.28 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58103  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 16:49:46  

Additional Information
 Earth MOID = 1.64096 au 
 Jupiter MOID = 2.27537 au 
 T_jup = 3.292 
[ 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 MPO453649  

117887 (2721 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2721 P-L = 1999 VF94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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