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3911 Otomo (1940 QB)
Classification: Main-belt Asteroid          SPK-ID: 2003911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09461117622043126 3.7386e-08  
a 3.037888708937047 1.5421e-08 au
q 2.750470484957745 1.15e-07 au
i 10.72903447362235 3.9363e-06 deg
node 210.2949971820478 2.1544e-05 deg
peri 133.7035594808384 2.9158e-05 deg
M 16.38072986303076 2.0363e-05 deg
tp 2458912.499130337768
(2020-Mar-03.99913034)
0.00010922 TDB
period 1933.99887204672
5.30
1.4726e-05
4.032e-08
d
yr
n .1861428179733206 1.4173e-09 deg/d
Q 3.325306932916348 1.688e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2438  
   data-arc span      29193 days (79.93 yr)  
   first obs. used      1940-08-31  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44615  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:09:10  

Additional Information
 Earth MOID = 1.75733 au 
 Jupiter MOID = 2.10393 au 
 T_jup = 3.208 
[ 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 11.4   n/a MPO400035  
diameter diameter 19.090 km 2.455 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 10.6 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.137   0.359 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3911 Otomo (1940 QB)          Discovered 1940-Aug-31 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1940 QB = 1951 TU = 1954 EU = 1962 WB = 1976 KA1 = 1979 FL = 1983 VC2 = 1986 GC2 = 1987 MS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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