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27740 Obatomoyuki (1990 UC1)
Classification: Main-belt Asteroid          SPK-ID: 2027740
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157116306000985 6.6811e-08  
a 2.395491921134253 1.4186e-08 au
q 1.87875645273702 1.6497e-07 au
i 10.31345596381313 7.8062e-06 deg
node 8.693465932515721 2.8206e-05 deg
peri 302.6545896739584 3.2285e-05 deg
M 339.1245377818752 1.9002e-05 deg
tp 2457479.027919619264
(2016-Mar-31.52791962)
7.1783e-05 JED
period 1354.223957656374
3.71
1.2029e-05
3.293e-08
d
yr
n .265834907117592 2.3614e-09 deg/d
Q 2.912227389531485 1.7246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      966  
   data-arc span      9015 days (24.68 yr)  
   first obs. used      1990-10-11  
   last obs. used      2015-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53116  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:41:21  

Additional Information
 Earth MOID = .886708 au 
 Jupiter MOID = 2.44214 au 
 T_jup = 3.476 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO337492  

27740 Obatomoyuki           Discovered 1990 Oct. 20 by T. Seki at Geisei.
Tomoyuki Oba (b. 1965) is from Konan city, Kochi prefecture. He helps visitors as a presenter at Geisei Observatory, while teaching junior high school.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

Alternate Designations
 1990 UC1 = 1998 XL44 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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