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30773 Schelde (1986 RJ4)
Classification: Main-belt Asteroid          SPK-ID: 2030773
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2269535110184938 5.5465e-08  
a 2.354862953871613 1.1431e-08 au
q 1.820418538523069 1.3166e-07 au
i 25.57134113786822 9.6232e-06 deg
node 332.9079531436857 1.0466e-05 deg
peri 66.79845374402365 2.2466e-05 deg
M 326.267386871898 1.7795e-05 deg
tp 2458724.178545146643
(2019-Aug-28.67854515)
6.5425e-05 TDB
period 1319.917792425611
3.61
9.6106e-06
2.631e-08
d
yr
n .2727442588211714 1.9859e-09 deg/d
Q 2.889307369220157 1.4025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1048  
   data-arc span      15555 days (42.59 yr)  
   first obs. used      1977-02-18  
   last obs. used      2019-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50232  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:49:51  

Additional Information
 Earth MOID = .934665 au 
 Jupiter MOID = 2.86615 au 
 T_jup = 3.392 
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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 13.9   n/a MPO452603  
diameter diameter 10.498 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30773 Schelde           Discovered 1986 Sept. 6 by E. W. Elst at Smolyan.
The Schelde river, with its source in Gouy (France), flows gently through Northern France, passes the cities of Cambrai and Valenciennes, and enters Flanders near Tournai (Doornik). The harbour of Antwerp, the second largest in Europe, lies on its right bank.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-10-18Last Updated: 2013-10-21

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Alternate Designations
 1986 RJ4 = 1977 DA3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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