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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04589840119205824 7.4261e-08  
a 3.176177698653144 3.3012e-08 AU
q 3.030396220383094 2.4155e-07 AU
i 8.537326634552484 7.1223e-06 deg
node 304.7936003273368 5.0766e-05 deg
peri 78.57015840660982 9.069e-05 deg
M 345.2653434775274 7.3859e-05 deg
tp 2457085.123918361851
(2015-Mar-03.62391836)
0.00042408 JED
period 2067.548066953792
5.66
3.2234e-05
8.825e-08
d
yr
n .1741192892943977 2.7146e-09 deg/d
Q 3.321959176923194 3.4527e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      961  
   data-arc span      22323 days (61.12 yr)  
   first obs. used      1953-12-07  
   last obs. used      2015-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51455  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:11:19  

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 12.7 mag n/a MPO309213  

7941 (1991 NE1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar
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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