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52081 (2002 RM71)
Classification: Main-belt Asteroid          SPK-ID: 2052081
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09246883428062275 3.7823e-08  
a 2.405768318415785 1.0053e-08 au
q 2.183309726462623 8.9884e-08 au
i 5.473071157609446 4.0139e-06 deg
node 252.6030693797288 3.7482e-05 deg
peri 347.3946285957095 4.353e-05 deg
M .2630730758663484 2.0091e-05 deg
tp 2458999.504014465721
(2020-May-30.00401447)
7.6065e-05 TDB
period 1362.947504831059
3.73
8.5429e-06
2.339e-08
d
yr
n .2641334304688594 1.6556e-09 deg/d
Q 2.628226910368947 1.0982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      10502 days (28.75 yr)  
   first obs. used      1991-10-09  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:19:20  

Additional Information
 Earth MOID = 1.17099 au 
 Jupiter MOID = 2.38078 au 
 T_jup = 3.511 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457232.5 (2015-Jul-29.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0929270687927303 3.7854e-08  
q 2.182495191831213 9.0111e-08 au
tp 2457634.721483423489
(2016-Sep-03.22148342)
7.9231e-05 TDB
node 252.676768262171 3.7492e-05 deg
peri 346.9143592985479 4.3454e-05 deg
i 5.472389314839906 4.0128e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      10502 days (28.75 yr)  
   first obs. used      1991-10-09  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:19:20  

Additional Information
 Jupiter MOID = 2.38078 au 
 T_jup = 3.511 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.432933354495401E-15 -3.394170376683174E-15 -8.382570657487128E-13 -8.896694598931856E-15 -2.227446003411844E-13 -4.588560552757785E-16
q -3.394170376683174E-15 8.120006690673313E-15 1.679446556223287E-12 2.15615331144832E-14 4.391444464812178E-13 1.157386557037703E-15
tp -8.382570657487128E-13 1.679446556223287E-12 6.277481237757669E-9 4.105166324743379E-12 1.752415808682373E-9 -2.261016297738238E-13
node -8.896694598931856E-15 2.15615331144832E-14 4.105166324743379E-12 1.405624913094441E-9 -1.397731595463906E-9 -4.315005808492048E-11
peri -2.227446003411844E-13 4.391444464812178E-13 1.752415808682373E-9 -1.397731595463906E-9 1.888234581567995E-9 4.288344965117338E-11
i -4.588560552757785E-16 1.157386557037703E-15 -2.261016297738238E-13 -4.315005808492048E-11 4.288344965117338E-11 1.610225527199585E-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 15.9   n/a MPO432078  

52081 (2002 RM71)          Discovered 2002-Sep-05 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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