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172161 (2002 NR34)
Classification: Main-belt Asteroid          SPK-ID: 2172161
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1926080489312111 6.1526e-08  
a 2.667434157826204 2.4161e-08 au
q 2.15366486903483 1.6421e-07 au
i 12.86459933382851 7.5226e-06 deg
node 145.8078409424314 2.9432e-05 deg
peri 192.2008633356762 3.5302e-05 deg
M 10.7940345171889 2.4195e-05 deg
tp 2458952.788805362545
(2020-Apr-13.28880536)
0.00010656 TDB
period 1591.252097826078
4.36
2.162e-05
5.919e-08
d
yr
n .2262369366185417 3.0738e-09 deg/d
Q 3.181203446617577 2.8815e-08 au
  Orbit Determination Parameters
   # obs. used (total)      274  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1998-09-27  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57675  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:11  

Additional Information
 Earth MOID = 1.14562 au 
 Jupiter MOID = 2.20948 au 
 T_jup = 3.321 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO436856  
diameter diameter 4.565 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172161 (2002 NR34)          Discovered 2002-Jul-09 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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