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20301 Thakur (1998 FY99)
Classification: Main-belt Asteroid          SPK-ID: 2020301
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0764410605829806 3.7183e-08  
a 2.322843295810578 9.0528e-09 au
q 2.145282690710751 8.7882e-08 au
i 7.627553329134349 4.7601e-06 deg
node 324.8369550712007 2.7785e-05 deg
peri 251.5086978269276 4.0494e-05 deg
M 67.39065587117014 2.9961e-05 deg
tp 2458758.438635162345
(2019-Oct-01.93863516)
0.00010754 TDB
period 1293.088636919399
3.54
7.5594e-06
2.07e-08
d
yr
n .2784031888623268 1.6275e-09 deg/d
Q 2.500403900910405 9.7448e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1685  
   data-arc span      14330 days (39.23 yr)  
   first obs. used      1980-02-14  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45716  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:51:20  

Additional Information
 Earth MOID = 1.15358 au 
 Jupiter MOID = 2.50681 au 
 T_jup = 3.561 
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Orbital Elements at Epoch 2456407.5 (2013-Apr-25.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07650477681322949 3.7075e-08  
q 2.144511196715092 8.7567e-08 au
tp 2456173.616912112557
(2012-Sep-03.11691211)
0.00010779 TDB
node 324.8835083840187 2.7794e-05 deg
peri 251.4967418393864 4.0504e-05 deg
i 7.627261057875128 4.7587e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1685  
   data-arc span      14330 days (39.23 yr)  
   first obs. used      1980-02-14  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45716  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:51:20  

Additional Information
 Jupiter MOID = 2.50681 au 
 T_jup = 3.561 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.374572271644098E-15 -3.232155073799534E-15 -1.335148222375277E-12 -9.056963317210651E-16 -3.55740789402853E-13 1.002900677184118E-15
q -3.232155073799534E-15 7.668027028296176E-15 3.016462834291068E-12 1.840497335289084E-15 8.059872196922839E-13 -2.194932131795598E-15
tp -1.335148222375277E-12 3.016462834291068E-12 1.161889324811922E-8 -2.421143072859373E-12 3.18644040865315E-9 -2.737880417569715E-12
node -9.056963317210651E-16 1.840497335289084E-15 -2.421143072859373E-12 7.725270158054451E-10 -7.65946371467097E-10 3.42866039908386E-11
peri -3.55740789402853E-13 8.059872196922839E-13 3.18644040865315E-9 -7.65946371467097E-10 1.640586526667921E-9 -3.469395558182582E-11
i 1.002900677184118E-15 -2.194932131795598E-15 -2.737880417569715E-12 3.42866039908386E-11 -3.469395558182582E-11 2.264540782804219E-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 14.1   n/a MPO474032  
diameter diameter 4.084 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.243   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20301 Thakur           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Gaurav Subhash Thakur (b. 1986) is a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors, for his mathematics project. He attends the Learning Community International, Annapolis, Maryland.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

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Alternate Designations
 1998 FY99 = 1980 DK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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