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18334 Drozdov (1987 RA3)
Classification: Main-belt Asteroid          SPK-ID: 2018334
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2466917335197564 3.2928e-08  
a 2.566841641913806 1.2715e-08 au
q 1.933623027599392 8.3888e-08 au
i 4.380505416092821 4.0546e-06 deg
node 139.5782840431738 6.2512e-05 deg
peri 167.955214624425 6.3673e-05 deg
M 269.4121116286449 1.4614e-05 deg
tp 2458978.476393394046
(2020-May-08.97639339)
6.2125e-05 TDB
period 1502.093757435282
4.11
1.1161e-05
3.056e-08
d
yr
n .239665465766048 1.7808e-09 deg/d
Q 3.200060256228221 1.5852e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1515  
   data-arc span      11574 days (31.69 yr)  
   first obs. used      1987-09-02  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52704  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:35:48  

Additional Information
 Earth MOID = .918331 au 
 Jupiter MOID = 2.07447 au 
 T_jup = 3.384 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO474009  
diameter diameter 4.204 km 0.806 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.331   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18334 Drozdov           Discovered 1987 Sept. 2 by L. G. Karachkina at the Crimean Astrophysical Observatory.
Nikolaj Nikolaevich Drozdov (b. 1937) is a Russian professor of biology and the author and chief producer of very popular TV program V mire zhivotnykh ("In the World of Animals").
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1987 RA3 = 1991 RM12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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