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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2154471291482572 7.9152e-08  
a 2.395998753647598 1.5265e-08 AU
q 1.87978770073142 1.916e-07 AU
i 10.31176355446231 7.8909e-06 deg
node 8.695878405949742 3.347e-05 deg
peri 302.5898534090637 3.6714e-05 deg
M 232.8426162611976 1.9452e-05 deg
tp 2457478.983968640991
(2016-Mar-31.48396864)
7.5371e-05 JED
period 1354.653765640453
3.71
1.2946e-05
3.544e-08
d
yr
n .2657505623437286 2.5397e-09 deg/d
Q 2.912209806563775 1.8554e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      8534 days (23.36 yr)  
   first obs. used      1990-10-11  
   last obs. used      2014-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54748  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 01:51:52  

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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