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173331 (1999 VS187)
Classification: Main-belt Asteroid          SPK-ID: 2173331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1313131576499087 4.2579e-08  
a 2.458827985298038 1.442e-08 au
q 2.13595151843059 1.0311e-07 au
i 11.27723498077602 4.096e-06 deg
node 67.04696786642927 3.8102e-05 deg
peri 28.57087789905776 4.9456e-05 deg
M 84.19107312795354 3.2818e-05 deg
tp 2458671.152635518432
(2019-Jul-06.65263552)
0.00012717 TDB
period 1408.285306366976
3.86
1.2388e-05
3.392e-08
d
yr
n .2556300192669835 2.2487e-09 deg/d
Q 2.781704452165487 1.6313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      7471 days (20.45 yr)  
   first obs. used      1999-11-15  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50611  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:26:41  

Additional Information
 Earth MOID = 1.15895 au 
 Jupiter MOID = 2.43923 au 
 T_jup = 3.453 
[ 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 16.0   n/a MPO264384  
diameter diameter 4.516 km 1.473 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.034   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

173331 (1999 VS187)          Discovered 1999-Nov-15 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1999 VS187 = 2003 WB138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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