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27790 Urashimataro (1993 CG1)
Classification: Main-belt Asteroid          SPK-ID: 2027790
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05968691993537572 3.1935e-08  
a 3.172409940264041 1.7475e-08 au
q 2.983058562157312 1.0433e-07 au
i 10.25422756736529 3.8045e-06 deg
node 128.4950616889299 2.3192e-05 deg
peri 337.8789848361859 4.624e-05 deg
M 9.235088156676687 3.8355e-05 deg
tp 2459147.555491056515
(2020-Oct-25.05549106)
0.00021995 TDB
period 2063.870197695365
5.65
1.7053e-05
4.669e-08
d
yr
n .1744295743026845 1.4412e-09 deg/d
Q 3.361761318370772 1.8518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1731  
   data-arc span      10721 days (29.35 yr)  
   first obs. used      1991-11-12  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48524  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:07:03  

Additional Information
 Earth MOID = 2.00222 au 
 Jupiter MOID = 1.72014 au 
 T_jup = 3.174 
[ 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 13.43   n/a MPCxxxxx  
diameter diameter 11.394 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27790 Urashimataro           Discovered 1993 Feb. 13 by T. Seki at Geisei.
Urashima Taro is a Japanese legend about a kind-hearted young fisherman. The story is loved by generations of children and many beaches across Japan are claimed to be the setting where the story took place.
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 2016-04-22Last Updated: 2016-04-25

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Alternate Designations
 1993 CG1 = 1991 VZ15 = 1999 GK47 = 2000 KS46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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