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JPL Small-Body Database Browser
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7125 Eitarodate (1991 CN1)
Classification: Main-belt Asteroid          SPK-ID: 2007125
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1156853673146223 3.5424e-08  
a 2.412983171092602 8.6672e-09 au
q 2.133836326620752 8.6591e-08 au
i 2.254782039732901 4.2195e-06 deg
node 189.9657840394415 8.4395e-05 deg
peri 326.8843550678332 8.6238e-05 deg
M 289.2660974527988 1.9781e-05 deg
tp 2459269.501675691249
(2021-Feb-24.00167569)
7.6064e-05 TDB
period 1369.083279184652
3.75
7.3764e-06
2.02e-08
d
yr
n .2629496725826608 1.4167e-09 deg/d
Q 2.692130015564451 9.6699e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1864  
   data-arc span      14545 days (39.82 yr)  
   first obs. used      1980-04-08  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51984  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:21:10  

Additional Information
 Earth MOID = 1.14356 au 
 Jupiter MOID = 2.29255 au 
 T_jup = 3.508 
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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 14.3   n/a MPO502220  
diameter diameter 8.652 km 0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7125 Eitarodate           Discovered 1991 Feb. 7 by T. Seki at Geisei.
Named in memory of Eitaro Date (1912-1953), Japanese amateur astronomer who observed the planets, particularly Mars, and who taught other planetary observers. Name proposed by the discoverer following a suggestion by T. Sato and A. Fujii.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981005/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1991 CN1 = 1980 GW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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