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85029 (2755 P-L)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085029
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1427117134162786 5.1765e-08  
a 3.229513090493099 2.3587e-08 au
q 2.768623743848527 1.7203e-07 au
i 5.455675034264044 5.443e-06 deg
node 29.50719890438771 5.4264e-05 deg
peri 342.5989584189659 5.6667e-05 deg
M 79.43193713369662 1.7381e-05 deg
tp 2458532.768462401690
(2019-Feb-18.26846240)
0.00010065 TDB
period 2119.844480841196
5.80
2.3224e-05
6.358e-08
d
yr
n .1698237787034004 1.8605e-09 deg/d
Q 3.69040243713767 2.6954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      603  
   data-arc span      21944 days (60.08 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56662  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:02:21  

Additional Information
 Earth MOID = 1.76965 au 
 Jupiter MOID = 1.7728 au 
 T_jup = 3.164 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456726.5 (2014-Mar-10.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1358848711488797 5.0676e-08  
q 2.794100009554985 1.6618e-07 au
tp 2456399.055537416610
(2013-Apr-16.55553742)
0.00010448 TDB
node 29.96273586719092 5.4594e-05 deg
peri 340.6424000057016 5.7368e-05 deg
i 5.437937500734144 5.4144e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      603  
   data-arc span      21944 days (60.08 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56662  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:02:21  

Additional Information
 Jupiter MOID = 1.7728 au 
 T_jup = 3.164 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.568076340578857E-15 -8.358841739736472E-15 -4.841598288308277E-13 9.157841014886551E-15 -1.529171053731729E-13 6.198421938149277E-16
q -8.358841739736472E-15 2.76170009497081E-14 1.725326112373829E-12 -2.548228538046328E-14 5.285297099112811E-13 -1.498319128219003E-15
tp -4.841598288308277E-13 1.725326112373829E-12 1.091556188228945E-8 3.679411662443062E-12 1.87856118516261E-9 7.972803652827683E-13
node 9.157841014886551E-15 -2.548228538046328E-14 3.679411662443062E-12 2.980494738987444E-9 -2.966023658128417E-9 -7.012006830114729E-11
peri -1.529171053731729E-13 5.285297099112811E-13 1.87856118516261E-9 -2.966023658128417E-9 3.291041400959107E-9 6.98036339525966E-11
i 6.198421938149277E-16 -1.498319128219003E-15 7.972803652827683E-13 -7.012006830114729E-11 6.98036339525966E-11 2.931618372983291E-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 15.0   n/a MPO333523  

85029 (2755 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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Alternate Designations
 2755 P-L = 2001 ST61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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