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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516849942481247 2.9693e-08  
a 2.533738064203319 7.3611e-09 au
q 2.149408020508384 7.5889e-08 au
i 5.979233111539568 3.9933e-06 deg
node 33.77181377598034 2.7188e-05 deg
peri 110.6888717420028 3.0121e-05 deg
M 216.7482223407068 1.3348e-05 deg
tp 2459186.690154498505
(2020-Dec-03.19015450)
5.5382e-05 TDB
period 1473.129751460168
4.03
6.4197e-06
1.758e-08
d
yr
n .2443776589558168 1.065e-09 deg/d
Q 2.918068107898254 8.4777e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2741  
   data-arc span      23870 days (65.35 yr)  
   first obs. used      1954-07-29  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43153  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:34:56  

Additional Information
 Earth MOID = 1.17041 au 
 Jupiter MOID = 2.10671 au 
 T_jup = 3.426 
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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-January); 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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