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135142 (2001 QU201)
Classification: Main-belt Asteroid          SPK-ID: 2135142
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2586773155222158 5.0046e-08  
a 3.098160795260201 1.676e-08 au
q 2.296736877686119 1.5817e-07 au
i 25.17490415758878 5.6297e-06 deg
node 56.37048647963064 1.2768e-05 deg
peri 329.4861235794448 1.6579e-05 deg
M 194.0672048134557 1.067e-05 deg
tp 2460118.587524858218
(2023-Jun-23.08752486)
6.3539e-05 TDB
period 1991.839579254916
5.45
1.6163e-05
4.425e-08
d
yr
n .1807374468051612 1.4666e-09 deg/d
Q 3.899584712834283 2.1096e-08 au
  Orbit Determination Parameters
   # obs. used (total)      831  
   data-arc span      6845 days (18.74 yr)  
   first obs. used      2001-08-22  
   last obs. used      2020-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53163  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:11:42  

Additional Information
 Earth MOID = 1.32997 au 
 Jupiter MOID = 1.61917 au 
 T_jup = 3.029 
[ 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 14.41   n/a MPCxxxxx  
diameter diameter 6.898 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135142 (2001 QU201)          Discovered 2001-Aug-22 by NEAT at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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