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7941 (1991 NE1)
Classification: Main-belt Asteroid          SPK-ID: 2007941
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04589840488268965 7.5004e-08  
a 3.176177707593959 3.5216e-08 AU
q 3.030396217191439 2.4258e-07 AU
i 8.537324016794019 7.4978e-06 deg
node 304.7936097576653 5.1665e-05 deg
peri 78.57016542669788 9.2977e-05 deg
M 345.2653245315995 7.7231e-05 deg
tp 2457085.124027529217
(2015-Mar-03.62402753)
0.0004436 JED
period 2067.548075683892
5.66
3.4386e-05
9.414e-08
d
yr
n .1741192885591892 2.8959e-09 deg/d
Q 3.32195919799648 3.6833e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      853  
   data-arc span      22182 days (60.73 yr)  
   first obs. used      1953-12-07  
   last obs. used      2014-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53125  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:52:45  

Additional Information
 Earth MOID = 2.04741 AU 
 T_jup = 3.182 
[ 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 12.6 mag n/a MPO250288  

7941 (1991 NE1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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