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JPL Small-Body Database Browser
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21956 Thangada (1999 VE179)
Classification: Main-belt Asteroid          SPK-ID: 2021956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09846281898869225 6.4642e-08  
a 2.774373680691822 1.7344e-08 au
q 2.501201027162872 1.8107e-07 au
i 9.902519862166402 6.2336e-06 deg
node 148.4306543173999 2.8936e-05 deg
peri 22.34210716427494 3.6232e-05 deg
M 324.0934362960224 2.2826e-05 deg
tp 2458768.851583062165
(2019-Oct-12.35158306)
0.00010756 TDB
period 1687.896686578939
4.62
1.5828e-05
4.333e-08
d
yr
n .2132831960999076 2e-09 deg/d
Q 3.047546334220773 1.9051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1099  
   data-arc span      23341 days (63.90 yr)  
   first obs. used      1955-04-14  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54355  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 00:02:20  

Additional Information
 Earth MOID = 1.51154 au 
 Jupiter MOID = 1.93236 au 
 T_jup = 3.307 
[ 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 14.1   n/a MPO337443  
diameter diameter 4.233 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21956 Thangada           Discovered 1999 Nov. 6 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Neela Devi Thangada (b. 1990) is a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her botany & zoology project. She attends the Keystone Junior High School, San Antonio, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 VE179 = 1987 DC3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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