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160874 (2001 NQ18)
Classification: Main-belt Asteroid          SPK-ID: 2160874
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2461366365165396 6.8682e-08  
a 3.112342696399176 2.0131e-08 au
q 2.346281133420665 2.0893e-07 au
i 9.808630514013558 5.5099e-06 deg
node 301.0619212230947 3.1271e-05 deg
peri 75.50016197734536 3.3497e-05 deg
M 109.518067268937 9.4981e-06 deg
tp 2458390.383439968441
(2018-Sep-28.88343997)
5.2849e-05 TDB
period 2005.531754609947
5.49
1.9458e-05
5.327e-08
d
yr
n .1795035153008664 1.7416e-09 deg/d
Q 3.878404259377686 2.5086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      840  
   data-arc span      6858 days (18.78 yr)  
   first obs. used      2001-07-12  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52628  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:36:56  

Additional Information
 Earth MOID = 1.37074 au 
 Jupiter MOID = 1.7985 au 
 T_jup = 3.149 
[ 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 14.2   n/a MPO459736  
diameter diameter 9.248 km 0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160874 (2001 NQ18)          Discovered 2001-Jul-12 by NEAT at Haleakala
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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