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70239 (1999 RA71)
Classification: Main-belt Asteroid          SPK-ID: 2070239
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751082724609519 4.4827e-08  
a 2.531145724551255 8.5913e-09 au
q 2.087921169378161 1.1465e-07 au
i .7484199063222186 5.755e-06 deg
node 322.5675148954814 0.00024566 deg
peri 56.28843899991406 0.00024617 deg
M 29.76157649301091 1.5655e-05 deg
tp 2458878.901677843045
(2020-Jan-30.40167784)
6.3828e-05 TDB
period 1470.869528258491
4.03
7.4887e-06
2.05e-08
d
yr
n .244753183802944 1.2461e-09 deg/d
Q 2.97437027972435 1.0096e-08 au
  Orbit Determination Parameters
   # obs. used (total)      912  
   data-arc span      9219 days (25.24 yr)  
   first obs. used      1995-08-19  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:28  

Additional Information
 Earth MOID = 1.09015 au 
 Jupiter MOID = 2.48932 au 
 T_jup = 3.429 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457005.5 (2014-Dec-14.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1770089175051313 4.5336e-08  
q 2.082648143901209 1.1635e-07 au
tp 2457405.305112048305
(2016-Jan-17.80511205)
6.0907e-05 TDB
node 323.0249638700807 0.00024484 deg
peri 55.33051215538284 0.00024533 deg
i .7498116175103379 5.762e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      912  
   data-arc span      9219 days (25.24 yr)  
   first obs. used      1995-08-19  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:28  

Additional Information
 Jupiter MOID = 2.48932 au 
 T_jup = 3.429 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.055383508763847E-15 -5.26532099620967E-15 -1.797938412116644E-12 1.946186703942639E-14 -4.208811382486656E-13 1.332026737726941E-16
q -5.26532099620967E-15 1.353737962451636E-14 4.619857878613749E-12 -4.942517996184033E-14 1.077264010654662E-12 -2.704882183325204E-16
tp -1.797938412116644E-12 4.619857878613749E-12 3.709691118024225E-9 -2.920457352600131E-11 9.487159218538654E-10 3.046442029190885E-13
node 1.946186703942639E-14 -4.942517996184033E-14 -2.920457352600131E-11 5.994498793819057E-8 -5.994612599469329E-8 2.556012631652784E-10
peri -4.208811382486656E-13 1.077264010654662E-12 9.487159218538654E-10 -5.994612599469329E-8 6.018525800036055E-8 -2.555078625146916E-10
i 1.332026737726941E-16 -2.704882183325204E-16 3.046442029190885E-13 2.556012631652784E-10 -2.555078625146916E-10 3.320043957691705E-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 15.8   n/a MPO493358  

70239 (1999 RA71)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1956-Jun-17 16:57 < 00:01 Eunom 0.00942769687443164 0.00942558276142443 0.00942981758051999 3.68247662733955 3.68247622299806 2435642.206422090 0.756234069861223 416.707742471947 23.8831688361231 -75.7053846035962 57155.7604346462 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 21:54:30 2020-Dec-17 21:54

Alternate Designations
 1999 RA71 = 1995 SM49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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