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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05407552735662761 1.0609e-07  
a 1.523708573613733 1.3398e-08 au
q 1.441313228957755 1.5365e-07 au
i 18.61979507975586 1.0788e-05 deg
node 282.4864925923637 1.4707e-05 deg
peri 176.8968335011119 8.9205e-05 deg
M 134.3331954226491 7.7749e-05 deg
tp 2457344.150698429218
(2015-Nov-17.65069843)
0.00015016 JED
period 686.991389396532
1.88
9.061e-06
2.481e-08
d
yr
n .5240240351720153 6.9115e-09 deg/d
Q 1.60610391826971 1.4122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6296 days (17.24 yr)  
   first obs. used      1998-12-14  
   last obs. used      2016-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57225  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-25 04:49:02  

Additional Information
 Earth MOID = .456694 au 
 Jupiter MOID = 3.51737 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 18.1 mag n/a MPO288202  

311999 (2007 NS2)          Discovered 2007-Jul-14 by La Sagra at La Sagra
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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