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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515345371821637 1.2725e-08  
a 2.534550520537227 6.6147e-09 au
q 2.150478580442806 3.3887e-08 au
i 5.978076032807691 1.1222e-06 deg
node 33.76496260249402 8.2554e-06 deg
peri 110.5384786016846 9.3363e-06 deg
M 3.471602020221514 6.9115e-06 deg
tp 2459186.287277159990
(2020-Dec-02.78727716)
2.828e-05 TDB
period 1473.838358371847
4.04
5.7696e-06
1.58e-08
d
yr
n .2442601645934177 9.5621e-10 deg/d
Q 2.918622460631647 7.617e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3250  
   data-arc span      24338 days (66.63 yr)  
   first obs. used      1954-07-29  
   last obs. used      2021-03-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40966  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:30:16  

Additional Information
 Earth MOID = 1.17092 au 
 Jupiter MOID = 2.1042 au 
 T_jup = 3.425 
[ 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 12.67   n/a E2021B10  
rotation period rot_per 58.21 h n/a LCDB (Rev. 2020-October); 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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