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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1850229252202703 5.6779e-08  
a 3.102871586803464 2.3529e-08 au
q 2.528769209230225 1.8648e-07 au
i 4.573582247877495 4.5956e-06 deg
node 297.2207694406094 6.7296e-05 deg
peri 83.68735548174079 6.934e-05 deg
M 348.8608227280455 1.4208e-05 deg
tp 2459262.272438463331
(2021-Feb-16.77243846)
7.8943e-05 TDB
period 1996.384230529202
5.47
2.2708e-05
6.217e-08
d
yr
n .1803260086384128 2.0511e-09 deg/d
Q 3.676973964376702 2.7883e-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-Apr-13 23:56:56  

Additional Information
 Earth MOID = 1.53536 au 
 Jupiter MOID = 1.84012 au 
 T_jup = 3.190 
[ 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 15.37   n/a E2021B55  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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