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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .003087703702602615 5.8044e-08  
a 1.871813744655419 6.0378e-09 au
q 1.866034138425464 1.0772e-07 au
i 25.27635121598757 5.9475e-06 deg
node 36.59753599978642 9.0827e-06 deg
peri 305.2051854088961 0.00072871 deg
M 43.83010965893556 0.00072915 deg
tp 2458886.616073792140
(2020-Feb-07.11607379)
0.0018946 TDB
period 935.3892507652289
2.56
4.5258e-06
1.239e-08
d
yr
n .3848665138128207 1.8622e-09 deg/d
Q 1.877593350885374 6.0564e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1591  
   data-arc span      17361 days (47.53 yr)  
   first obs. used      1971-10-26  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40549  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:29:39  

Additional Information
 Earth MOID = .867999 au 
 Jupiter MOID = 3.09789 au 
 T_jup = 3.865 
[ 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 14.1   n/a MPO473792  
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. 2019-August); 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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