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18528 (1996 VX30)
Classification: Main-belt Asteroid          SPK-ID: 2018528
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1959642786480195 4.9212e-08  
a 2.539057175380056 1.0866e-08 au
q 2.041492667560625 1.2732e-07 au
i 9.819360019134992 7.3418e-06 deg
node 46.51616806794665 3.3531e-05 deg
peri 80.30422062473964 4.0754e-05 deg
M 278.8748233648198 2.3114e-05 deg
tp 2459533.512321209072
(2021-Nov-15.01232121)
9.5308e-05 TDB
period 1477.771027536693
4.05
9.4862e-06
2.597e-08
d
yr
n .2436101353266389 1.5638e-09 deg/d
Q 3.036621683199487 1.2995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1237  
   data-arc span      10304 days (28.21 yr)  
   first obs. used      1992-11-26  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50381  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:30:58  

Additional Information
 Earth MOID = 1.08347 au 
 Jupiter MOID = 2.11357 au 
 T_jup = 3.399 
[ 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 15.04   n/a MPCxxxxx  
diameter diameter 2.977 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.433 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.263   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18528 (1996 VX30)          Discovered 1996-Nov-02 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 VX30 = 1998 HG85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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