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2047 Smetana (1971 UA1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2002047
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .00315904983004359 2.8551e-08  
a 1.872016460151695 4.486e-09 au
q 1.866102666871414 5.2276e-08 au
i 25.27509877389519 9.5869e-07 deg
node 36.59007455380398 3.5674e-06 deg
peri 308.3776327548283 0.00029507 deg
M 193.0430888286385 0.0002957 deg
tp 2459830.375195176306
(2022-Sep-07.87519518)
0.00076842 TDB
period 935.5412074146159
2.56
3.3628e-06
9.207e-09
d
yr
n .3848040013062238 1.3832e-09 deg/d
Q 1.877930253431976 4.5002e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2728  
   data-arc span      18151 days (49.69 yr)  
   first obs. used      1971-10-26  
   last obs. used      2021-07-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 08:18:36  

Additional Information
 Earth MOID = .869139 au 
 Jupiter MOID = 3.09577 au 
 T_jup = 3.864 
[ 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 14.10   n/a MPO636093  
diameter diameter 3.131 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.4970 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2006) Minor Planet Bull. 33, 85-88.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 142-149.]
[Warner, B.D. (2013) Minor Planet Bull. 40, 94-98.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 300-304.]
geometric albedo albedo 0.544   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2047 Smetana (1971 UA1)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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