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14416 (1991 RU7)
Classification: Main-belt Asteroid          SPK-ID: 2014416
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .209854648295109 3.9824e-08  
a 2.307994320524691 6.7374e-09 au
q 1.823650984123873 9.2703e-08 au
i 6.737439620305929 5.7606e-06 deg
node 178.1894718298235 2.8871e-05 deg
peri 223.5021704054939 3.1938e-05 deg
M 90.52179034524929 1.3171e-05 deg
tp 2458878.466416591001
(2020-Jan-29.96641659)
4.6585e-05 TDB
period 1280.709203663291
3.51
5.6079e-06
1.535e-08
d
yr
n .2810942554096356 1.2308e-09 deg/d
Q 2.792337656925509 8.1513e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1006  
   data-arc span      15894 days (43.52 yr)  
   first obs. used      1977-09-09  
   last obs. used      2021-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55745  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:28:34  

Additional Information
 Earth MOID = .837055 au 
 Jupiter MOID = 2.63654 au 
 T_jup = 3.548 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457088.5 (2015-Mar-07.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2103023361992802 4.0151e-08  
q 1.822191035014458 9.3548e-08 au
tp 2457595.611899848001
(2016-Jul-26.11189985)
4.5577e-05 TDB
node 178.2932211709454 2.8817e-05 deg
peri 222.9731591538259 3.187e-05 deg
i 6.743255830035121 5.767e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1006  
   data-arc span      15894 days (43.52 yr)  
   first obs. used      1977-09-09  
   last obs. used      2021-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55745  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:28:34  

Additional Information
 Jupiter MOID = 2.63654 au 
 T_jup = 3.548 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.612093480982823E-15 -3.750135486499205E-15 -1.024380451952593E-12 3.19742371941748E-15 -2.658214808368916E-13 -1.971589407118443E-15
q -3.750135486499205E-15 8.751259999079403E-15 2.3889054585812E-12 -8.033634650552635E-15 6.168044273130414E-13 4.793808085333609E-15
tp -1.024380451952593E-12 2.3889054585812E-12 2.077305486536975E-9 -1.009898406179709E-11 6.2471984208904E-10 2.328752229082889E-12
node 3.19742371941748E-15 -8.033634650552635E-15 -1.009898406179709E-11 8.304415851580439E-10 -8.265399230404425E-10 -2.539401520907448E-11
peri -2.658214808368916E-13 6.168044273130414E-13 6.2471984208904E-10 -8.265399230404425E-10 1.015700137745571E-9 2.58102543938622E-11
i -1.971589407118443E-15 4.793808085333609E-15 2.328752229082889E-12 -2.539401520907448E-11 2.58102543938622E-11 3.325866945550081E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO502278  

14416 (1991 RU7)          Discovered 1991-Sep-08 by Oak Ridge Observatory at Harvard
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RU7 = 1977 RS18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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