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181693 (5096 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2181693
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172865764252698 1.9017e-07  
a 2.553592318694574 1.8569e-08 au
q 1.998730986179564 4.9267e-07 au
i 16.12821657446289 7.2616e-06 deg
node 340.8855737949137 1.9647e-05 deg
peri 38.21619780409603 2.7881e-05 deg
M 194.5589424896515 1.2377e-05 deg
tp 2459885.462141845671
(2022-Nov-01.96214185)
5.5401e-05 TDB
period 1490.478692382737
4.08
1.6257e-05
4.451e-08
d
yr
n .2415331408894482 2.6345e-09 deg/d
Q 3.108453651209585 2.2603e-08 au
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      16982 days (46.49 yr)  
   first obs. used      1973-09-20  
   last obs. used      2020-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49657  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:39  

Additional Information
 Earth MOID = 1.01897 au 
 Jupiter MOID = 2.43864 au 
 T_jup = 3.351 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457713.5 (2016-Nov-21.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2160545291752615 1.898e-07  
q 2.003573256043049 4.9059e-07 au
tp 2458394.962816457573
(2018-Oct-03.46281646)
4.8076e-05 TDB
node 340.9269438555909 1.9636e-05 deg
peri 38.14274218601141 2.808e-05 deg
i 16.12782472282579 7.2603e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      16982 days (46.49 yr)  
   first obs. used      1973-09-20  
   last obs. used      2020-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49657  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:39  

Additional Information
 Jupiter MOID = 2.43864 au 
 T_jup = 3.351 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.602364488704674E-14 -9.308072939556494E-14 -5.027422702947508E-12 1.824205384779396E-13 -3.231447509558241E-12 -4.038893975205961E-13
q -9.308072939556494E-14 2.406743826931431E-13 1.305395274717818E-11 -4.742526096554851E-13 8.344248595301287E-12 1.044656982390998E-12
tp -5.027422702947508E-12 1.305395274717818E-11 2.311348171050728E-9 -2.73387074689495E-11 8.983504136432447E-10 5.157837140169369E-11
node 1.824205384779396E-13 -4.742526096554851E-13 -2.73387074689495E-11 3.85559009856494E-10 -3.861441862990365E-10 5.524040284027082E-11
peri -3.231447509558241E-12 8.344248595301287E-12 8.983504136432447E-10 -3.861441862990365E-10 7.884690644209358E-10 -2.072099459067423E-11
i -4.038893975205961E-13 1.044656982390998E-12 5.157837140169369E-11 5.524040284027082E-11 -2.072099459067423E-11 5.271170212422151E-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 15.79   n/a E2021B55  

181693 (5096 T-2)          Discovered 1973-Sep-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 5096 T-2 = 2003 AR81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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