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311999 (2007 NS2)
Classification: Mars-crossing Asteroid          SPK-ID: 2311999
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05407674489463043 2.2363e-07  
a 1.523686637492904 1.3782e-08 AU
q 1.441290623897843 3.4262e-07 AU
i 18.62154941783508 1.7083e-05 deg
node 282.4979288516727 1.7578e-05 deg
peri 176.8130437017499 0.00013776 deg
M 75.20122494891909 0.00011995 deg
tp 2456656.995893409356
(2013-Dec-30.49589341)
0.00023013 JED
period 686.9765540085696
1.88
9.3205e-06
2.552e-08
d
yr
n .5240353515696684 7.1098e-09 deg/d
Q 1.606082651087965 1.4527e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      5516 days (15.10 yr)  
   first obs. used      1998-12-14  
   last obs. used      2014-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60923  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 14:33:00  

Additional Information
 Earth MOID = .457821 AU 
 T_jup = 4.439 
[ 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 18.0 mag n/a MPO281579  

311999 (2007 NS2)          Discovered 2007-Jul-14 by La Sagra at La Sagra (J75)
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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