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49721 (1999 VX52)
Classification: Main-belt Asteroid          SPK-ID: 2049721
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .111012147169603 3.5959e-08  
a 2.279264374729445 8.4275e-09 au
q 2.026238342523547 8.2568e-08 au
i 5.248561666357379 4.2477e-06 deg
node 246.0920292393126 4.2911e-05 deg
peri 255.8213937898884 4.7883e-05 deg
M 298.0537308757697 2.3797e-05 deg
tp 2459216.773413448646
(2021-Jan-02.27341345)
8.3691e-05 TDB
period 1256.87034816207
3.44
6.9709e-06
1.909e-08
d
yr
n .286425724440417 1.5886e-09 deg/d
Q 2.532290406935343 9.3631e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      12200 days (33.40 yr)  
   first obs. used      1987-05-30  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52432  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:31:12  

Additional Information
 Earth MOID = 1.04666 au 
 Jupiter MOID = 2.50388 au 
 T_jup = 3.593 
[ 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 14.9   n/a MPO502488  
diameter diameter 2.981 km 0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49721 (1999 VX52)          Discovered 1999-Nov-03 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VX52 = 1987 KP4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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