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21652 Vasishtha (1999 OQ2)
Classification: Main-belt Asteroid          SPK-ID: 2021652
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2509460228109078 1.9588e-08  
a 2.609119939804831 7.5404e-09 au
q 1.954371667874173 5.0416e-08 au
i 11.98464424071472 6.6382e-07 deg
node 289.4773743336723 3.6275e-06 deg
peri 63.56650826423271 7.1285e-06 deg
M 28.74003260086612 4.0155e-06 deg
tp 2459077.607820001580
(2020-Aug-16.10782000)
1.7029e-05 TDB
period 1539.357502263159
4.21
6.6732e-06
1.827e-08
d
yr
n .2338638032235716 1.0138e-09 deg/d
Q 3.263868211735488 9.4327e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3159  
   data-arc span      12098 days (33.12 yr)  
   first obs. used      1988-01-18  
   last obs. used      2021-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32935  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 03:02:49  

Additional Information
 Earth MOID = .979485 au 
 Jupiter MOID = 2.29438 au 
 T_jup = 3.335 
[ 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 12.43   n/a E2021B10  
diameter diameter 10.516 km 0.403 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.29 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Clark, M. (2004) Minor Planet Bull. 31, 15-16.]
[Eisman, A.; Robson, M. (2004) Minor Planet Bull. 31, 84.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.189   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21652 Vasishtha           Discovered 1999 July 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Dhruv Vasishtha (b. 1989) was awarded second place in the 2006 Intel International Science and Engineering Fair for his biochemistry team project. He attends the Herricks Senior High School, New Hyde Park, New York, 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

[ show close-approach data ]
Alternate Designations
 1999 OQ2 = 1988 BS = 1990 QD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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