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160033 (1998 QU81)
Classification: Main-belt Asteroid          SPK-ID: 2160033
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2634771984872289 7.5185e-08  
a 2.760431960133882 1.9234e-08 au
q 2.033121080663197 2.0874e-07 au
i 16.15434813689605 9.7982e-06 deg
node 228.3977127088249 1.7651e-05 deg
peri 142.2536337424116 2.1255e-05 deg
M 245.7513635485791 1.4287e-05 deg
tp 2459532.133723563089
(2021-Nov-13.63372356)
7.05e-05 TDB
period 1675.189712781309
4.59
1.7509e-05
4.794e-08
d
yr
n .2149010331506238 2.2461e-09 deg/d
Q 3.487742839604567 2.4302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      7918 days (21.68 yr)  
   first obs. used      1998-08-20  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51461  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:30:06  

Additional Information
 Earth MOID = 1.05849 au 
 Jupiter MOID = 2.08406 au 
 T_jup = 3.235 
[ 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 14.9   n/a MPO257715  
diameter diameter 7.153 km 0.335 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160033 (1998 QU81)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

Alternate Designations
 1998 QU81 = 2003 QB79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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