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70855 (1999 VS117)
Classification: Main-belt Asteroid          SPK-ID: 2070855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .065079869598516 5.3062e-08  
a 2.591342787648269 1.7437e-08 au
q 2.422698536943065 1.3021e-07 au
i 3.448162605708295 7.847e-06 deg
node 30.19876552018972 8.2922e-05 deg
peri 264.6194662135575 0.00010867 deg
M 53.91559625377057 7.4084e-05 deg
tp 2458772.309459180623
(2019-Oct-15.80945918)
0.0003126 TDB
period 1523.651789146834
4.17
1.5379e-05
4.211e-08
d
yr
n .2362744575659124 2.3848e-09 deg/d
Q 2.759987038353473 1.8572e-08 au
  Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      8665 days (23.72 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5165  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:58:51  

Additional Information
 Earth MOID = 1.40977 au 
 Jupiter MOID = 2.35015 au 
 T_jup = 3.414 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457163.5 (2015-May-21.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06533439948724627 5.3398e-08  
q 2.422577834978964 1.3125e-07 au
tp 2457253.562729091056
(2015-Aug-19.06272909)
0.00030546 TDB
node 30.26191457137894 8.2805e-05 deg
peri 265.9353880052191 0.00010833 deg
i 3.451046839453552 7.851e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      8665 days (23.72 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5165  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:58:51  

Additional Information
 Jupiter MOID = 2.35015 au 
 T_jup = 3.414 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.851399452135772E-15 -6.968545194017068E-15 5.856287069599292E-12 5.62251101184729E-15 1.261107060692096E-12 1.325973868578952E-15
q -6.968545194017068E-15 1.722635472429816E-14 -1.35459052287567E-11 -1.636306289392739E-14 -2.906775467458047E-12 -2.613260365679133E-15
tp 5.856287069599292E-12 -1.35459052287567E-11 9.330692207345886E-8 -3.503015199706441E-11 2.134833222118057E-8 9.308483920290561E-12
node 5.62251101184729E-15 -1.636306289392739E-14 -3.503015199706441E-11 6.8567334416393E-9 -6.851988950697503E-9 -1.385038637800661E-10
peri 1.261107060692096E-12 -2.906775467458047E-12 2.134833222118057E-8 -6.851988950697503E-9 1.173542956760814E-8 1.404287812496359E-10
i 1.325973868578952E-15 -2.613260365679133E-15 9.308483920290561E-12 -1.385038637800661E-10 1.404287812496359E-10 6.163842401478946E-11

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 16.3   n/a MPO439541  

70855 (1999 VS117)          Discovered 1999-Nov-09 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 VS117 = 1999 VO218 = 1999 VP228 = 2002 JH18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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