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135751 (2002 QT20)
Classification: Main-belt Asteroid          SPK-ID: 2135751
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .144267311580433 4.5831e-08  
a 2.594347733688918 1.4038e-08 au
q 2.220068160844828 1.1715e-07 au
i 9.712393572346727 4.1331e-06 deg
node 343.8305686305921 2.5226e-05 deg
peri 305.0745628741155 3.2299e-05 deg
M 223.2539503134981 2.5874e-05 deg
tp 2459976.266336544762
(2023-Jan-31.76633654)
0.00011259 TDB
period 1526.302819237613
4.18
1.2389e-05
3.392e-08
d
yr
n .2358640732772936 1.9144e-09 deg/d
Q 2.968627306533007 1.6064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      837  
   data-arc span      8275 days (22.66 yr)  
   first obs. used      1998-09-15  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50742  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:16:45  

Additional Information
 Earth MOID = 1.22027 au 
 Jupiter MOID = 2.28801 au 
 T_jup = 3.383 
[ 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 15.46   n/a MPCxxxxx  
diameter diameter 4.415 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135751 (2002 QT20)          Discovered 2002-Aug-28 by NEAT at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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