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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1238102184770231 2.9544e-08  
a 2.24547088278616 6.3925e-09 au
q 1.967458642204612 6.5683e-08 au
i 7.069843653326986 3.3556e-06 deg
node 142.123786994411 2.6806e-05 deg
peri 342.7420712270741 3.0281e-05 deg
M 26.70427494156458 1.501e-05 deg
tp 2458909.332959095844
(2020-Feb-29.83295910)
5.1116e-05 TDB
period 1229.021750162265
3.36
5.2482e-06
1.437e-08
d
yr
n .2929158901805196 1.2508e-09 deg/d
Q 2.523483123367709 7.1839e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1859  
   data-arc span      23902 days (65.44 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50652  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:06:23  

Additional Information
 Earth MOID = .983813 au 
 Jupiter MOID = 2.52428 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

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