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JPL Small-Body Database Browser
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349222 (2007 TW4)
Classification: Main-belt Asteroid          SPK-ID: 2349222
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196742892283973 8.2249e-08  
a 2.725655631926697 2.6912e-08 au
q 2.399464731494491 2.2335e-07 au
i 3.174483830442138 8.9713e-06 deg
node 184.2833843443747 9.9537e-05 deg
peri 177.4635364353192 0.00010299 deg
M 300.1297654389844 2.6325e-05 deg
tp 2459273.846402762311
(2021-Feb-28.34640276)
0.00012206 TDB
period 1643.633196294639
4.50
2.4343e-05
6.665e-08
d
yr
n .2190269707447952 3.2439e-09 deg/d
Q 3.051846532358903 3.0133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      7513 days (20.57 yr)  
   first obs. used      1998-09-12  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6289  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:40:16  

Additional Information
 Earth MOID = 1.39656 au 
 Jupiter MOID = 2.40041 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457302.5 (2015-Oct-07.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1207993999069459 8.2439e-08  
q 2.394071027062665 2.2406e-07 au
tp 2457635.753523666251
(2016-Sep-04.25352367)
0.00011138 TDB
node 184.3817126766903 9.9494e-05 deg
peri 178.2543289784682 0.00010286 deg
i 3.17593226756419 8.9781e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      7513 days (20.57 yr)  
   first obs. used      1998-09-12  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6289  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:40:16  

Additional Information
 Jupiter MOID = 2.40041 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.796268460876971E-15 -1.837158116184026E-14 2.814568902177448E-12 -7.568925220890744E-15 7.206575271418495E-13 1.425142965918032E-15
q -1.837158116184026E-14 5.020206100486222E-14 -6.950247980693472E-12 2.063213071601872E-14 -1.828568733709795E-12 -3.037240051941946E-15
tp 2.814568902177448E-12 -6.950247980693472E-12 1.240600714981844E-8 -1.982539788234519E-11 2.924819425619148E-9 3.247324800563177E-12
node -7.568925220890744E-15 2.063213071601872E-14 -1.982539788234519E-11 9.899003098094139E-9 -9.887327037838167E-9 1.55411244633318E-10
peri 7.206575271418495E-13 -1.828568733709795E-12 2.924819425619148E-9 -9.887327037838167E-9 1.058069027290082E-8 -1.543809109774487E-10
i 1.425142965918032E-15 -3.037240051941946E-15 3.247324800563177E-12 1.55411244633318E-10 -1.543809109774487E-10 8.060703267695167E-11

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 17.4   n/a MPO434201  

349222 (2007 TW4)          Discovered 2007-Oct-02 by Charleston at Charleston
Reference: 20121228/Numbers.arcLast Updated: 2013-01-02

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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