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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2154471475055839 6.998e-08  
a 2.39599875582009 1.4527e-08 AU
q 1.879787658451723 1.7174e-07 AU
i 10.31176268395088 7.857e-06 deg
node 8.695916473808964 3.0098e-05 deg
peri 302.5898154602226 3.3789e-05 deg
M 232.8426143031473 1.8847e-05 deg
tp 2457478.983976659766
(2016-Mar-31.48397666)
7.2808e-05 JED
period 1354.653767482884
3.71
1.232e-05
3.373e-08
d
yr
n .2657505619822879 2.4168e-09 deg/d
Q 2.912209853188456 1.7657e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      8936 days (24.47 yr)  
   first obs. used      1990-10-11  
   last obs. used      2015-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54135  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:26:12  

Additional Information
 Earth MOID = .890447 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 14.3 mag n/a MPO270308  

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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