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163348 (2002 NN4)
Classification: Aten [NEO, PHA]          SPK-ID: 2163348
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 148 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4345260233648831 5.4602e-08  
a .8763943315437557 1.1333e-09 au
q .4955781877585226 4.7346e-08 au
i 5.417650266609434 4.0947e-06 deg
node 259.4797659349069 1.5341e-05 deg
peri 222.2323412573534 1.4881e-05 deg
M 83.77386354593308 1.2412e-05 deg
tp 2458930.764517361938
(2020-Mar-22.26451736)
1.0285e-05 TDB
period 299.6731043201478
0.82
5.8128e-07
1.591e-09
d
yr
n 1.201309009084124 2.3302e-09 deg/d
Q 1.257210475328989 1.6258e-09 au
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      6596 days (18.06 yr)  
   first obs. used      2002-07-02  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49327  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-24 06:50:01  

Additional Information
 Earth MOID = .00693776 au 
 Jupiter MOID = 3.82799 au 
 T_jup = 6.673 
[ 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 20.1   n/a MPO385721  
diameter diameter 0.735 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 14.50 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2017) Minor Planet Bull. 44, 22-36.]
geometric albedo albedo 0.030   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

163348 (2002 NN4)          Discovered 2002-Jul-09 by LINEAR at Socorro
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

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