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3748 Tatum (1981 JQ)
Classification: Main-belt Asteroid          SPK-ID: 2003748
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515600047605236 2.9094e-08  
a 2.534479718564283 7.2739e-09 au
q 2.15035396035323 7.4581e-08 au
i 5.978192864435646 3.9433e-06 deg
node 33.77114310136123 2.656e-05 deg
peri 110.5747346731664 2.9524e-05 deg
M 314.587815949766 1.3264e-05 deg
tp 2459186.409484150925
(2020-Dec-02.90948415)
5.4535e-05 TDB
period 1473.77660189828
4.03
6.3445e-06
1.737e-08
d
yr
n .244270399961776 1.0516e-09 deg/d
Q 2.918605476775337 8.3763e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2981  
   data-arc span      24192 days (66.23 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42137  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:57:36  

Additional Information
 Earth MOID = 1.17092 au 
 Jupiter MOID = 2.10491 au 
 T_jup = 3.425 
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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 12.6   n/a MPO347551  
rotation period rot_per 58.21 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Brinsfield, J.W.; Higgins, D. (2010) Minor Planet Bull. 37, 21.]

3748 Tatum (1981 JQ)          Discovered 1981-May-03 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 JQ = 1979 VT2 = 1983 VB4 = 1985 GN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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