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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1443389108205336 4.5959e-08  
a 2.594271275057336 1.4027e-08 au
q 2.219816984842563 1.1746e-07 au
i 9.711831525472258 4.158e-06 deg
node 343.8335497597941 2.559e-05 deg
peri 305.0319956214592 3.2598e-05 deg
M 177.0781982421938 2.5671e-05 deg
tp 2458449.769429762109
(2018-Nov-27.26942976)
0.00010537 TDB
period 1526.235346691275
4.18
1.2378e-05
3.389e-08
d
yr
n .2358745004696975 1.913e-09 deg/d
Q 2.968725565272108 1.6052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      8190 days (22.42 yr)  
   first obs. used      1998-09-15  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:14:27  

Additional Information
 Earth MOID = 1.21851 au 
 Jupiter MOID = 2.28885 au 
 T_jup = 3.383 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457730.5 (2016-Dec-08.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1453813716600793 4.5856e-08  
q 2.215732013277399 1.1723e-07 au
tp 2458450.080701202887
(2018-Nov-27.58070120)
0.0001049 TDB
node 343.8989078184162 2.5569e-05 deg
peri 305.0923866070158 3.253e-05 deg
i 9.718923676837056 4.1603e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      8190 days (22.42 yr)  
   first obs. used      1998-09-15  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:14:27  

Additional Information
 Jupiter MOID = 2.28885 au 
 T_jup = 3.383 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.102809997766205E-15 -5.348956826858697E-15 1.989791296550848E-12 2.326631576968654E-14 3.144190363231877E-13 3.428710532224404E-15
q -5.348956826858697E-15 1.37429894026518E-14 -4.481289095417548E-12 -5.740627851037635E-14 -6.952896502129092E-13 -8.32870469109206E-15
tp 1.989791296550848E-12 -4.481289095417548E-12 1.100436298626818E-8 5.969914861371426E-11 2.126796813904947E-9 1.94623250712885E-13
node 2.326631576968654E-14 -5.740627851037635E-14 5.969914861371426E-11 6.537664109960986E-10 -6.32310310771593E-10 -3.937489462489317E-12
peri 3.144190363231877E-13 -6.952896502129092E-13 2.126796813904947E-9 -6.32310310771593E-10 1.058210880999429E-9 3.734797744537457E-12
i 3.428710532224404E-15 -8.32870469109206E-15 1.94623250712885E-13 -3.937489462489317E-12 3.734797744537457E-12 1.73083484734403E-11

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 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

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