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37481 (1209 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2037481
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1300404905575472 3.6106e-08  
a 2.772636202817151 1.6407e-08 au
q 2.412081230865193 9.9717e-08 au
i 4.175028461931591 4.5698e-06 deg
node 322.0036635227432 6.197e-05 deg
peri 310.4817773671111 6.4847e-05 deg
M 164.4775005284384 1.9309e-05 deg
tp 2458230.054792264728
(2018-Apr-21.55479226)
9.0045e-05 TDB
period 1686.31134284985
4.62
1.4968e-05
4.098e-08
d
yr
n .2134837089997885 1.895e-09 deg/d
Q 3.133191174769108 1.8541e-08 au
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      17838 days (48.84 yr)  
   first obs. used      1971-03-25  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:32:25  

Additional Information
 Earth MOID = 1.39842 au 
 Jupiter MOID = 1.98849 au 
 T_jup = 3.320 
[ 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 14.9   n/a MPO263659  

37481 (1209 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1209 T-1 = 2000 QP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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