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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2149866971487456 3.5732e-08  
a 2.807189485714873 8.4307e-09 au
q 2.203681089910347 9.9486e-08 au
i 4.740623529696852 3.8392e-06 deg
node 160.9542072348187 3.6885e-05 deg
peri 191.1764788162897 3.7474e-05 deg
M 186.5556586000653 7.1295e-06 deg
tp 2460028.182274568274
(2023-Mar-24.68227457)
3.5312e-05 TDB
period 1717.932199111171
4.70
7.7391e-06
2.119e-08
d
yr
n .2095542537629005 9.4402e-10 deg/d
Q 3.4106978815194 1.0243e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3171  
   data-arc span      31955 days (87.49 yr)  
   first obs. used      1933-07-24  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44416  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:57:14  

Additional Information
 Earth MOID = 1.19664 au 
 Jupiter MOID = 2.02812 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 12.26   n/a E2021B10  
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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