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8139 Paulabell (1980 UM1)
Classification: Main-belt Asteroid          SPK-ID: 2008139
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09843854067542555 6.2946e-08  
a 2.250855691678765 1.4788e-08 AU
q 2.029284742118931 1.4037e-07 AU
i 4.842692560463039 6.9996e-06 deg
node 269.3727205605707 9.063e-05 deg
peri 174.9417046101279 0.00010041 deg
M 354.4079900642832 4.4946e-05 deg
tp 2457019.659551503121
(2014-Dec-28.15955150)
0.00015405 JED
period 1233.445330107294
3.38
1.2156e-05
3.328e-08
d
yr
n .2918653881227833 2.8764e-09 deg/d
Q 2.472426641238598 1.6244e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      779  
   data-arc span      22240 days (60.89 yr)  
   first obs. used      1953-10-12  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .499  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:53:06  

Additional Information
 Earth MOID = 1.04514 AU 
 T_jup = 3.616 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO266001  

8139 Paulabell           Discovered 1980 Oct. 31 by S. J. Bus at Palomar.
Paul A. Abell (b. 1965) is lead scientist for small bodies in the Astromaterials Research and Exploration Science Directorate at the NASA Johnson Space Center. His research includes characterization of minor-planet compositions and scientific planning for human exploration of minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Alternate Designations
 1980 UM1 = 1970 WH1 = 1987 XA1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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