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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04608331225484236 8.766e-08  
a 3.176812069670505 4.1804e-08 AU
q 3.030414047088927 2.6943e-07 AU
i 8.53736351465934 7.9802e-06 deg
node 304.794342368585 5.855e-05 deg
peri 78.4922698480962 0.00010546 deg
M 310.5296533451474 9.127e-05 deg
tp 2457084.702677953881
(2015-Mar-03.20267795)
0.00052598 JED
period 2068.167518154255
5.66
4.0823e-05
1.118e-07
d
yr
n .1740671376181769 3.4359e-09 deg/d
Q 3.323210092252083 4.3731e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      21825 days (59.75 yr)  
   first obs. used      1953-12-07  
   last obs. used      2013-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58157  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Sep-23 22:46:08  

Additional Information
 Earth MOID = 2.04607 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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