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JPL Small-Body Database Browser
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268257 (2005 NA21)
Classification: Main-belt Asteroid          SPK-ID: 2268257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2468049305182574 6.2481e-08  
a 2.360429678156875 1.4536e-08 au
q 1.777863995446135 1.5109e-07 au
i 7.174083353063842 3.9314e-06 deg
node 75.21544115022257 4.7092e-05 deg
peri 286.3025539984357 4.793e-05 deg
M 246.5590017950763 9.2378e-06 deg
tp 2459017.900115754476
(2020-Jun-17.40011575)
3.6055e-05 TDB
period 1324.600841400999
3.63
1.2235e-05
3.35e-08
d
yr
n .2717799874105745 2.5105e-09 deg/d
Q 2.942995360867616 1.8123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      7576 days (20.74 yr)  
   first obs. used      1998-09-27  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57936  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:38:28  

Additional Information
 Earth MOID = .790943 au 
 Jupiter MOID = 2.54039 au 
 T_jup = 3.500 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO433741  

268257 (2005 NA21)          Discovered 2005-Jul-06 by Broughton, J. at Reedy Creek
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 2005 NA21 = 2009 TL35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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