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4443 Paulet (1985 RD4)
Classification: Main-belt Asteroid          SPK-ID: 2004443
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182845505015422 2.6649e-08  
a 2.235347475654815 6.115e-09 au
q 1.970940404282228 5.9269e-08 au
i 3.613583731930182 3.5613e-06 deg
node 346.8884541786794 4.8041e-05 deg
peri 85.17589745212985 5.0523e-05 deg
M 70.19586884468768 1.5621e-05 deg
tp 2458762.473646714060
(2019-Oct-05.97364671)
5.2798e-05 TDB
period 1220.719802935001
3.34
5.0091e-06
1.371e-08
d
yr
n .2949079708008709 1.2101e-09 deg/d
Q 2.499754547027401 6.8383e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2227  
   data-arc span      17230 days (47.17 yr)  
   first obs. used      1972-12-02  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43875  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:13:29  

Additional Information
 Earth MOID = .989418 au 
 Jupiter MOID = 2.7253 au 
 T_jup = 3.627 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO347558  
diameter diameter 4.565 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.338   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4443 Paulet           Discovered 1985 Sept. 10 by H. Debehogne at the European Southern Observatory.
Peruvian scientist Pedro Paulet (1874-1945) built a liquid-fuel rocket engine in 1895 and a prototype of rocketry propulsion in 1900. The National Air & Space Museum in Washington, D.C., has a small plaque honoring Paulet's memory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120831/MPCPages.arcLast Updated: 2012-09-04

Alternate Designations
 1985 RD4 = 1972 XO = 1977 FY2 = 1978 NE6 = 1980 DF6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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