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8356 Wadhwa (1989 RO2)
Classification: Main-belt Asteroid          SPK-ID: 2008356
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2940618586725089 1.7343e-08  
a 2.431490851937145 8.8622e-09 au
q 1.716482132671305 4.4416e-08 au
i 23.07887571281645 3.2988e-06 deg
node 354.3962702827881 3.691e-06 deg
peri 45.95482354283288 7.242e-06 deg
M 71.71840698176482 9.304e-06 deg
tp 2458924.610278728214
(2020-Mar-16.11027873)
3.5011e-05 TDB
period 1384.86483230304
3.79
7.5712e-06
2.073e-08
d
yr
n .2599531677046905 1.4212e-09 deg/d
Q 3.146499571202984 1.1468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1868  
   data-arc span      11516 days (31.53 yr)  
   first obs. used      1989-09-03  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39941  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:32:38  

Additional Information
 Earth MOID = .775186 au 
 Jupiter MOID = 2.52193 au 
 T_jup = 3.342 
[ 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 13.0   n/a MPO531092  
diameter diameter 6.745 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.04303 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
[Buchheim, R.K. (2009) Minor Planet Bull. 36, 84-85.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.295   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8356 Wadhwa           Discovered 1989 Sept. 3 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Named in honor of Meenakshi Wadhwa, known as Mini to her friends. Mini's studies of the microdistribution of trace elements in all known martian meteorites have led to a better understanding of the origin of these rocks and have contributed to the igneous history of planet Mars. Her use of extinct and long-lived radioisotopes to decipher the chronology of meteorites is bringing new insights into the formation of a variety of objects from different asteroidal bodies. As Curator of Meteorites, Minerals and Gems at the Field Museum of Natural History, she is actively involved in public education about meteorites and their parent asteroids. Citation prepared by M. S. Robinson at the request of C. S. Shoemaker.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

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