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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298943569699104 3.5129e-08  
a 2.772981372110965 1.5239e-08 au
q 2.412786739891071 9.815e-08 au
i 4.175174235274877 4.39e-06 deg
node 322.0014906218617 5.478e-05 deg
peri 310.5320748055805 5.7421e-05 deg
M 207.1067217879018 1.8483e-05 deg
tp 2459916.816156669873
(2022-Dec-03.31615667)
8.8296e-05 TDB
period 1686.626249477259
4.62
1.3904e-05
3.807e-08
d
yr
n .2134438498817245 1.7595e-09 deg/d
Q 3.133176004330859 1.7219e-08 au
  Orbit Determination Parameters
   # obs. used (total)      930  
   data-arc span      18223 days (49.89 yr)  
   first obs. used      1971-03-25  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:27:11  

Additional Information
 Earth MOID = 1.39729 au 
 Jupiter MOID = 1.98766 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 14.96   n/a MPCxxxxx  

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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