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13968 (1991 RE7)
Classification: Main-belt Asteroid          SPK-ID: 2013968
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554556734238182 5.3075e-08  
a 3.180720642414021 4.0048e-08 au
q 2.686259572974509 1.6821e-07 au
i 17.56901732203764 1.039e-05 deg
node 7.87569025779375 2.0067e-05 deg
peri 278.526605892749 4.1402e-05 deg
M 200.7868586193444 4.0426e-05 deg
tp 2458516.853680559658
(2019-Feb-02.35368056)
0.00024145 JED
period 2071.98552921435
5.67
3.9132e-05
1.071e-07
d
yr
n .1737463871847135 3.2814e-09 deg/d
Q 3.675181711853532 4.6273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      8949 days (24.50 yr)  
   first obs. used      1991-09-02  
   last obs. used      2016-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48433  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:18:36  

Additional Information
 Earth MOID = 1.74167 au 
 Jupiter MOID = 1.81941 au 
 T_jup = 3.109 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.9 mag n/a MPO267762  

13968 (1991 RE7)          Discovered 1991-Sep-02 by McNaught, R. H. at Siding Spring
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 RE7 = 1995 FJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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