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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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1941-Nov-12 14:35 00:02 Jupiter 1.97649684472014 1.97649645051571 1.97649723892457 2.49451291825575 2.31635488823681 2430311.107814098 1.87605221206886 60.3830409748272 11.9254331385147 -88.0801603589462 3220568.83280846 T 20 CATAB v2.0f-lin.ifort 2020-Feb-23 04:32:38 2020-Feb-23 04:32
2024-Dec-28 10:13 < 00:01 Jupiter 1.98496350245462 1.984963158086 1.98496384682325 2.5340648081872 2.35967064872607 2460672.926024807 0.326689913066484 44.4055532723637 7.70177058868266 -79.280680666032 3311956.68800187 T 20 CATAB v2.0f-lin.ifort 2020-Feb-23 04:32:38 2020-Feb-23 04:32
2108-Feb-12 06:55 00:02 Jupiter 1.98454305325847 1.98454270576411 1.98454340075272 2.54957650307829 2.37628294867734 2491032.788316872 2.4254704925054 71.3889206819945 10.6665138649336 -87.1892948081023 3340844.92513371 T 20 CATAB v2.0f-lin.ifort 2020-Feb-23 04:32:38 2020-Feb-23 04:32
2191-Mar-29 14:37 00:05 Jupiter 1.98893591424244 1.98893541863571 1.98893640984996 2.58169918235141 2.41110686644482 2521394.108742839 4.55830463014432 117.574771185237 13.14403689902 87.3218409940229 3272615.85059708 T 20 CATAB v2.0f-lin.ifort 2020-Feb-23 04:32:38 2020-Feb-23 04:32

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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