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JPL Small-Body Database Browser
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1668 Hanna (1933 OK)
Classification: Main-belt Asteroid          SPK-ID: 2001668
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2147682654600176 3.6354e-08  
a 2.807653850135797 8.5829e-09 au
q 2.204658902729992 1.0136e-07 au
i 4.739931633133148 3.8932e-06 deg
node 160.9543596785334 3.8894e-05 deg
peri 191.1668964780054 3.9514e-05 deg
M 144.6703476204765 7.1976e-06 deg
tp 2458309.956890074586
(2018-Jul-10.45689007)
3.3768e-05 TDB
period 1718.358486462662
4.70
7.8795e-06
2.157e-08
d
yr
n .20950226791214 9.6066e-10 deg/d
Q 3.410648797541602 1.0426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2845  
   data-arc span      31607 days (86.54 yr)  
   first obs. used      1933-07-24  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45491  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:01:34  

Additional Information
 Earth MOID = 1.19935 au 
 Jupiter MOID = 2.02739 au 
 T_jup = 3.283 
[ 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 12.2   n/a MPO337259  
diameter diameter 24.813 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.038   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1668 Hanna (1933 OK)          Discovered 1933-Jul-24 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 OK = 1938 SY = 1966 QM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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