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66796 (1999 TD252)
Classification: Main-belt Asteroid          SPK-ID: 2066796
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 .2413487016274989 4.2424e-08  
a 2.678416694114519 1.8497e-08 au
q 2.031984302572562 1.2017e-07 au
i 6.52190715938504 4.2535e-06 deg
node 109.1214871659782 4.7337e-05 deg
peri 215.3185638998449 4.8697e-05 deg
M 17.095026088897 1.5628e-05 deg
tp 2459320.470364426440
(2021-Apr-15.97036443)
6.8993e-05 TDB
period 1601.089618942351
4.38
1.6586e-05
4.541e-08
d
yr
n .2248468766150698 2.3292e-09 deg/d
Q 3.324849085656476 2.2962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1998-04-23  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5883  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:44:03  

Additional Information
 Earth MOID = 1.02303 au 
 Jupiter MOID = 2.02299 au 
 T_jup = 3.326 
[ 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 15.57   n/a E2021B10  
diameter diameter 4.702 km 1.400 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66796 (1999 TD252)          Discovered 1999-Oct-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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