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171576 (1999 VP11)
Classification: Apollo [NEO, PHA]          SPK-ID: 2171576
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 87 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5835758556154804 5.5362e-08  
a 1.085703647385372 3.438e-09 au
q .4521132124176056 5.9941e-08 au
i 17.27974531627799 6.5724e-06 deg
node 208.104862245512 4.5219e-06 deg
peri 61.72512545225185 6.5788e-06 deg
M 157.3530310996439 5.4995e-06 deg
tp 2458819.891583672711
(2019-Dec-02.39158367)
5.6411e-06 TDB
period 413.2048135548825
1.13
1.9627e-06
5.374e-09
d
yr
n .8712386404767384 4.1383e-09 deg/d
Q 1.719294082353138 5.4443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   # delay obs. used      4  
   # Doppler obs. used      2  
   data-arc span      7015 days (19.21 yr)  
   first obs. used      1999-11-07  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39885  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-22 08:29:57  

Additional Information
 Earth MOID = .00197534 au 
 Jupiter MOID = 3.46342 au 
 T_jup = 5.501 
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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 18.6   n/a MPO401418  
rotation period rot_per 2.796 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Rowe, B. (2018) Minor Planet Bull. 45, 203-207.]

171576 (1999 VP11)          Discovered 1999-Nov-07 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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