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JPL Small-Body Database Browser
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172157 (2002 NN26)
Classification: Main-belt Asteroid          SPK-ID: 2172157
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130772149774004 6.4295e-08  
a 2.672884570546754 1.8537e-08 au
q 2.103353770298587 1.7642e-07 au
i 10.88043241602507 7.7587e-06 deg
node 318.984004673219 2.1415e-05 deg
peri 36.78333972658339 2.6091e-05 deg
M 9.803033510221587 1.5371e-05 deg
tp 2458957.036297506187
(2020-Apr-17.53629751)
6.7919e-05 TDB
period 1596.131736309767
4.37
1.6604e-05
4.546e-08
d
yr
n .2255452929169334 2.3463e-09 deg/d
Q 3.242415370794922 2.2487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      7101 days (19.44 yr)  
   first obs. used      1998-11-14  
   last obs. used      2018-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53583  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:52:32  

Additional Information
 Earth MOID = 1.1084 au 
 Jupiter MOID = 2.23465 au 
 T_jup = 3.322 
[ 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 15.4   n/a MPO436856  

172157 (2002 NN26)          Discovered 2002-Jul-09 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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