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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09290130180806989 3.7795e-08  
a 2.406737772328584 1.0113e-08 au
q 2.183148700168605 8.9917e-08 au
i 5.471142641936773 4.0125e-06 deg
node 252.5917165958609 3.7501e-05 deg
peri 347.4278043802132 4.3497e-05 deg
M 53.03129146631888 1.9865e-05 deg
tp 2458999.603999525665
(2020-May-30.10399953)
7.5752e-05 TDB
period 1363.771429490719
3.73
8.596e-06
2.353e-08
d
yr
n .2639738538403292 1.6639e-09 deg/d
Q 2.630326844488564 1.1053e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5573  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:42:55  

Additional Information
 Earth MOID = 1.16937 au 
 Jupiter MOID = 2.37766 au 
 T_jup = 3.510 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457232.5 (2015-Jul-29.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09292706978113294 3.7854e-08  
q 2.18249518984606 9.0111e-08 au
tp 2457634.721478358567
(2016-Sep-03.22147836)
7.9231e-05 TDB
node 252.676768329736 3.7492e-05 deg
peri 346.9143579901951 4.3454e-05 deg
i 5.472389313624815 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5573  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:42:55  

Additional Information
 Jupiter MOID = 2.37766 au 
 T_jup = 3.510 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.432933575715028E-15 -3.394170999591161E-15 -8.382568532060719E-13 -8.89670404860087E-15 -2.227445600433059E-13 -4.588544768733989E-16
q -3.394170999591161E-15 8.120008203570264E-15 1.679446335104073E-12 2.156155151474919E-14 4.391444084991581E-13 1.15738410588179E-15
tp -8.382568532060719E-13 1.679446335104073E-12 6.277480861340259E-9 4.105177585545489E-12 1.75241585879815E-9 -2.261061011486126E-13
node -8.89670404860087E-15 2.156155151474919E-14 4.105177585545489E-12 1.405624889290559E-9 -1.397731568642702E-9 -4.315005327544953E-11
peri -2.227445600433059E-13 4.391444084991581E-13 1.75241585879815E-9 -1.397731568642702E-9 1.888234602564839E-9 4.288344371348529E-11
i -4.588544768733989E-16 1.15738410588179E-15 -2.261061011486126E-13 -4.315005327544953E-11 4.288344371348529E-11 1.610225519087762E-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 15.98   n/a E2021B10  

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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