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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1427117194169072 5.2054e-08  
a 3.229513087259083 2.3781e-08 au
q 2.768623721696935 1.7322e-07 au
i 5.455674405749136 5.5009e-06 deg
node 29.50719928455861 5.4265e-05 deg
peri 342.5989593238218 5.6679e-05 deg
M 79.43193675475715 1.7383e-05 deg
tp 2458532.768465335634
(2019-Feb-18.26846534)
0.00010067 TDB
period 2119.844477656996
5.80
2.3414e-05
6.41e-08
d
yr
n .1698237789584912 1.8758e-09 deg/d
Q 3.690402452821231 2.7174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      600  
   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      .56624  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 13:17:42  

Additional Information
 Earth MOID = 1.76965 au 
 Jupiter MOID = 1.7728 au 
 T_jup = 3.164 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456666.5 (2014-Jan-09.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357693164762261 5.094e-08  
q 2.793833060275222 1.6734e-07 au
tp 2456398.713585560089
(2013-Apr-16.21358556)
0.00010476 TDB
node 29.97037670904323 5.4586e-05 deg
peri 340.5602449389938 5.7384e-05 deg
i 5.438664612291952 5.4727e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      600  
   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      .56624  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 13:17:42  

Additional Information
 Jupiter MOID = 1.7728 au 
 T_jup = 3.164 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.594838852419108E-15 -8.461071737280944E-15 -4.494858953927665E-13 8.768719180719501E-15 -1.456625258277578E-13 6.823456804392195E-16
q -8.461071737280944E-15 2.800357074023334E-14 1.608793706408225E-12 -2.575814797979158E-14 5.051419541008355E-13 -1.45471342767477E-15
tp -4.494858953927665E-13 1.608793706408225E-12 1.097505296799949E-8 2.707589038376898E-12 1.891490490017298E-9 8.813508497573505E-13
node 8.768719180719501E-15 -2.575814797979158E-14 2.707589038376898E-12 2.979653761211595E-9 -2.965368960895055E-9 -7.037066695538898E-11
peri -1.456625258277578E-13 5.051419541008355E-13 1.891490490017298E-9 -2.965368960895055E-9 3.292966106051834E-9 7.006810142696574E-11
i 6.823456804392195E-16 -1.45471342767477E-15 8.813508497573505E-13 -7.037066695538898E-11 7.006810142696574E-11 2.995032463639309E-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

[ show close-approach data ]
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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