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20069 (1993 TD37)
Classification: Main-belt Asteroid          SPK-ID: 2020069
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02870710505073689 3.9894e-08  
a 3.195519771164174 2.3442e-08 au
q 3.103785649401657 1.2864e-07 au
i 8.289161228080408 4.3708e-06 deg
node 162.7155812161327 2.92e-05 deg
peri 214.4364702828436 8.1363e-05 deg
M 289.2321334993159 7.7588e-05 deg
tp 2459610.651488743687
(2022-Jan-31.15148874)
0.00045062 TDB
period 2086.463012789851
5.71
2.2959e-05
6.286e-08
d
yr
n .1725408012474838 1.8986e-09 deg/d
Q 3.28725389292669 2.4115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1191  
   data-arc span      9775 days (26.76 yr)  
   first obs. used      1993-10-09  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52315  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:12:35  

Additional Information
 Earth MOID = 2.10442 au 
 Jupiter MOID = 1.85354 au 
 T_jup = 3.179 
[ 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 13.84   n/a E2021B10  
diameter diameter 7.569 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.123   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20069 (1993 TD37)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 TD37 = 1998 QV20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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