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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05402879393827084 1.7211e-07  
a 1.52377750495767 1.4232e-08 au
q 1.441449644134539 2.61e-07 au
i 18.62038320153788 1.5661e-05 deg
node 282.4947615773586 1.5712e-05 deg
peri 176.9492430810993 0.00011838 deg
M 29.47696934974814 0.00010165 deg
tp 2457344.245004684594
(2015-Nov-17.74500468)
0.00019447 JED
period 687.0380083262982
1.88
9.6256e-06
2.635e-08
d
yr
n .5239884775472619 7.3412e-09 deg/d
Q 1.6061053657808 1.5001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      6211 days (17.00 yr)  
   first obs. used      1998-12-14  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61815  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 22:59:09  

Additional Information
 Earth MOID = .45816 au 
 Jupiter MOID = 3.51815 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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