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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1555273431057596 5.3136e-08  
a 3.180491637020201 4.0895e-08 au
q 2.685838222944361 1.6824e-07 au
i 17.56893132143126 1.0817e-05 deg
node 7.877268199637338 2.0088e-05 deg
peri 278.580793152219 4.2922e-05 deg
M 165.9610974995956 4.207e-05 deg
tp 2456445.411510272743
(2013-Jun-01.91151027)
0.00023398 JED
period 2071.761765148909
5.67
3.9958e-05
1.094e-07
d
yr
n .1737651529514181 3.3514e-09 deg/d
Q 3.675145051096041 4.7255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1017  
   data-arc span      8876 days (24.30 yr)  
   first obs. used      1991-09-02  
   last obs. used      2015-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48281  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:26:01  

Additional Information
 Earth MOID = 1.73992 au 
 Jupiter MOID = 1.81937 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

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