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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152044993375207 1.7848e-08  
a 2.80661357761703 7.9348e-09 au
q 2.202617707812069 5.0137e-08 au
i 4.741120990967391 1.6475e-06 deg
node 160.9573536255454 1.2317e-05 deg
peri 191.2020803250545 1.266e-05 deg
M 227.6029278253175 5.984e-06 deg
tp 2460028.108898729677
(2023-Mar-24.60889873)
3.0038e-05 TDB
period 1717.403563446505
4.70
7.2831e-06
1.994e-08
d
yr
n .2096187568619853 8.8895e-10 deg/d
Q 3.41060944742199 9.6425e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3582  
   data-arc span      32113 days (87.92 yr)  
   first obs. used      1933-07-24  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42882  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:39:04  

Additional Information
 Earth MOID = 1.19649 au 
 Jupiter MOID = 2.02858 au 
 T_jup = 3.283 
[ 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 12.27   n/a MPCxxxxx  
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

Alternate Designations
 1933 OK = 1938 SY = 1966 QM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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