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216953 (1999 VS172)
Classification: Main-belt Asteroid          SPK-ID: 2216953
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849999631256036 5.6804e-08  
a 3.102829996153188 2.3352e-08 au
q 2.528806561279831 1.8644e-07 au
i 4.573561463234339 4.5956e-06 deg
node 297.2208389632384 6.7297e-05 deg
peri 83.72491496309513 6.9342e-05 deg
M 24.17969789368532 1.4305e-05 deg
tp 2459262.413897148340
(2021-Feb-16.91389715)
7.8986e-05 TDB
period 1996.34409159445
5.47
2.2537e-05
6.17e-08
d
yr
n .1803296343129272 2.0357e-09 deg/d
Q 3.676853431026545 2.7672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      8148 days (22.31 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:34:21  

Additional Information
 Earth MOID = 1.53597 au 
 Jupiter MOID = 1.84114 au 
 T_jup = 3.190 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457812.5 (2017-Feb-28.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1912428961734431 5.7194e-08  
q 2.505941706297477 1.8907e-07 au
tp 2457262.194030192112
(2015-Aug-27.69403019)
6.988e-05 TDB
node 297.634854155438 6.7751e-05 deg
peri 82.81587106558241 6.949e-05 deg
i 4.560204122924358 4.5885e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      8148 days (22.31 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:34:21  

Additional Information
 Jupiter MOID = 1.84114 au 
 T_jup = 3.190 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.271150162820778E-15 -1.077400442253128E-14 -1.073779161949368E-12 -2.47290540204468E-15 -2.446763924120866E-13 -6.103254333956765E-15
q -1.077400442253128E-14 3.574858316516702E-14 3.245697946522994E-12 1.158751556973865E-14 7.575638564697368E-13 2.105185028066817E-14
tp -1.073779161949368E-12 3.245697946522994E-12 4.883204605043727E-9 -1.519266073276015E-11 1.113748870322631E-9 1.856893532064034E-12
node -2.47290540204468E-15 1.158751556973865E-14 -1.519266073276015E-11 4.590225369317781E-9 -4.579644577189926E-9 1.323877764041045E-10
peri -2.446763924120866E-13 7.575638564697368E-13 1.113748870322631E-9 -4.579644577189926E-9 4.828850115062319E-9 -1.316174409496677E-10
i -6.103254333956765E-15 2.105185028066817E-14 1.856893532064034E-12 1.323877764041045E-10 -1.316174409496677E-10 2.10545152198621E-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 15.37   n/a E2021B55  

216953 (1999 VS172)          Discovered 1999-Nov-14 by LINEAR at Socorro
Reference: 20090806/Numbers.arcLast Updated: 2009-08-09

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