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21644 Vinay (1999 NA50)
Classification: Main-belt Asteroid          SPK-ID: 2021644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2116042305029403 3.3536e-08  
a 2.413203418980647 7.0845e-09 au
q 1.902559366460182 8.1536e-08 au
i 9.090617517068674 4.4463e-06 deg
node 165.3132431942239 1.7337e-05 deg
peri 224.6612958050524 1.9556e-05 deg
M 194.7365454086064 8.8229e-06 deg
tp 2459829.084475537529
(2022-Sep-06.58447554)
3.4504e-05 TDB
period 1369.270730501207
3.75
6.0297e-06
1.651e-08
d
yr
n .2629136751270699 1.1578e-09 deg/d
Q 2.923847471501111 8.5836e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1487  
   data-arc span      17317 days (47.41 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:51:04  

Additional Information
 Earth MOID = .917141 au 
 Jupiter MOID = 2.55296 au 
 T_jup = 3.471 
[ 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 14.87   n/a E2021B10  

21644 Vinay           Discovered 1999 July 13 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Vinay Tripuraneni (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for his biochemistry project. He attends the Clovis West High School, Fresno, California, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060711/MPCPages.arcLast Updated: 2006-07-17

Alternate Designations
 1999 NA50 = 4110 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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