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177834 (2005 NW55)
Classification: Main-belt Asteroid          SPK-ID: 2177834
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2107142145386086 5.4296e-08  
a 3.196919434829046 4.2953e-08 au
q 2.523283067175831 1.7495e-07 au
i 14.1006358262945 6.4132e-06 deg
node 266.1581905976655 3.3791e-05 deg
peri 357.9671068041692 4.6543e-05 deg
M 252.4248137862317 4.0811e-05 deg
tp 2459624.386474299608
(2022-Feb-13.88647430)
0.00024573 TDB
period 2087.833994556572
5.72
4.2078e-05
1.152e-07
d
yr
n .1724275018696873 3.4751e-09 deg/d
Q 3.870555802482261 5.2004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      15949 days (43.67 yr)  
   first obs. used      1976-05-31  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52111  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 18:12:13  

Additional Information
 Earth MOID = 1.50758 au 
 Jupiter MOID = 1.24069 au 
 T_jup = 3.114 
[ 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 15.1   n/a MPO433152  
diameter diameter 5.639 km 0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

177834 (2005 NW55)          Discovered 2005-Jul-11 by Lowe, A. at Mayhill
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

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