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21515 Gavini (1998 KR50)
Classification: Main-belt Asteroid          SPK-ID: 2021515
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1508951581939244 4.047e-08  
a 2.702452237497972 1.4621e-08 au
q 2.294665279609191 1.1202e-07 au
i 15.51652769951407 4.225e-06 deg
node 105.5790294696044 1.8051e-05 deg
peri 179.5984062495214 2.5528e-05 deg
M 354.5795331810198 2.0199e-05 deg
tp 2459224.932598425330
(2021-Jan-10.43259843)
9.1072e-05 TDB
period 1622.689655127082
4.44
1.3168e-05
3.605e-08
d
yr
n .2218538824491405 1.8004e-09 deg/d
Q 3.110239195386753 1.6827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1351  
   data-arc span      8610 days (23.57 yr)  
   first obs. used      1997-01-14  
   last obs. used      2020-08-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:56:35  

Additional Information
 Earth MOID = 1.27631 au 
 Jupiter MOID = 2.06461 au 
 T_jup = 3.298 
[ 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 14.20   n/a E2021B10  
diameter diameter 4.128 km 1.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.313   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21515 Gavini           Discovered 1998 May 23 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Madhavi Pulakat Gavini (b. 1989) was awarded first place and Best in Category in the 2006 Intel International Science and Engineering Fair for her medicine and health project. She also received the Intel Foundation Young Scientist Award. She attends the Mississippi School for Mathematics and Science, Columbus,, Mississippi, 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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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