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3773 Smithsonian (1984 YY)
Classification: Main-belt Asteroid          SPK-ID: 2003773
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1838355790847813 1.7946e-08  
a 2.165677206578781 4.7014e-09 au
q 1.76754868319666 4.0064e-08 au
i 1.325412481025519 1.1143e-06 deg
node 63.44995864824099 3.7462e-05 deg
peri 286.86031903769 3.9964e-05 deg
M 236.2956599762732 7.3565e-06 deg
tp 2459796.510555098975
(2022-Aug-05.01055510)
2.4515e-05 TDB
period 1164.096585520045
3.19
3.7906e-06
1.038e-08
d
yr
n .3092526895774499 1.007e-09 deg/d
Q 2.563805729960903 5.5657e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3065  
   data-arc span      26181 days (71.68 yr)  
   first obs. used      1949-11-25  
   last obs. used      2021-07-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46695  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 09:56:34  

Additional Information
 Earth MOID = .761259 au 
 Jupiter MOID = 2.85783 au 
 T_jup = 3.671 
[ 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 13.35   n/a MPO636120  
rotation period rot_per 6.9804 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2007) Minor Planet Bull. 34, 31-32.]
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]

3773 Smithsonian (1984 YY)          Discovered 1984-Dec-23 by Oak Ridge Observatory at Oak Ridge
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 YY = 1938 DA2 = 1971 TS = 1974 QO = 1981 YC2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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