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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .119674252295848 7.1761e-08  
a 2.725655621544529 2.4271e-08 au
q 2.399464823020213 2.0005e-07 au
i 3.174487735396321 7.4225e-06 deg
node 184.2833998697018 9.7509e-05 deg
peri 177.4635143495328 0.00010076 deg
M 300.1297744373468 2.4344e-05 deg
tp 2459273.846360117171
(2021-Feb-28.34636012)
0.00011244 TDB
period 1643.633186903609
4.50
2.1954e-05
6.011e-08
d
yr
n .2190269719962233 2.9256e-09 deg/d
Q 3.051846420068845 2.7176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      7949 days (21.76 yr)  
   first obs. used      1998-09-12  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 06:27:55  

Additional Information
 Earth MOID = 1.39656 au 
 Jupiter MOID = 2.40041 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457524.5 (2016-May-16.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208317359163561 7.1907e-08  
q 2.394372205851323 2.0053e-07 au
tp 2457635.485769549864
(2016-Sep-03.98576955)
0.0001054 TDB
node 184.376689121888 9.7454e-05 deg
peri 178.1813891459073 0.00010063 deg
i 3.176045664535148 7.4277e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      7949 days (21.76 yr)  
   first obs. used      1998-09-12  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 06:27:55  

Additional Information
 Jupiter MOID = 2.40041 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.170681548860758E-15 -1.434166984047218E-14 1.369195831806186E-12 -1.105608168462619E-14 4.435508618508035E-13 -1.47202217641471E-15
q -1.434166984047218E-14 4.021225957204412E-14 -3.370433202192758E-12 3.062190062671308E-14 -1.143810879253407E-12 4.546958417433994E-15
tp 1.369195831806186E-12 -3.370433202192758E-12 1.110955620665556E-8 -1.035397712418171E-11 2.663631779981184E-9 3.779751348330114E-12
node -1.105608168462619E-14 3.062190062671308E-14 -1.035397712418171E-11 9.497211917331163E-9 -9.484098497392451E-9 5.487347165591238E-11
peri 4.435508618508035E-13 -1.143810879253407E-12 2.663631779981184E-9 -9.484098497392451E-9 1.012712236887435E-8 -5.38435254772853E-11
i -1.47202217641471E-15 4.546958417433994E-15 3.779751348330114E-12 5.487347165591238E-11 -5.38435254772853E-11 5.517139290620971E-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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