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JPL Small-Body Database Browser
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5618 Saitama (1990 EA)
Classification: Main-belt Asteroid          SPK-ID: 2005618
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .123907117138453 3.0078e-08  
a 2.245412602589089 6.5825e-09 au
q 1.967190000215925 6.6644e-08 au
i 7.069442740296053 3.3936e-06 deg
node 142.1295464771833 2.7129e-05 deg
peri 342.8269453883281 3.078e-05 deg
M 269.467389134015 1.56e-05 deg
tp 2458909.561711307805
(2020-Mar-01.06171131)
5.3755e-05 TDB
period 1228.973902404194
3.36
5.4042e-06
1.48e-08
d
yr
n .2929272943027886 1.2881e-09 deg/d
Q 2.523635204962254 7.3981e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1824  
   data-arc span      23872 days (65.36 yr)  
   first obs. used      1954-07-29  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5141  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:01:57  

Additional Information
 Earth MOID = .983897 au 
 Jupiter MOID = 2.52545 au 
 T_jup = 3.611 
[ 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 14.3   n/a MPO452246  
diameter diameter 3.740 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.289   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5618 Saitama           Discovered 1990 Mar. 4 by A. Sugie at Dynic Astronomical Observatory.
Named for the Japanese prefecture.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

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Alternate Designations
 1990 EA = 1975 XK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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