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JPL Small-Body Database Browser
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12787 Abetadashi (1995 SR3)
Classification: Main-belt Asteroid          SPK-ID: 2012787
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1773836053387315 4.2199e-08  
a 2.256842603307351 7.4715e-09 au
q 1.856515725650645 9.3476e-08 au
i 6.245056337434268 4.2377e-06 deg
node 328.6357213771553 3.6932e-05 deg
peri 17.52870597136671 3.8572e-05 deg
M 355.2666808664637 1.2721e-05 deg
tp 2458616.782220066282
(2019-May-13.28222007)
4.3796e-05 TDB
period 1238.369748266348
3.39
6.1496e-06
1.684e-08
d
yr
n .2907047757779783 1.4436e-09 deg/d
Q 2.657169480964058 8.7968e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1841  
   data-arc span      15065 days (41.25 yr)  
   first obs. used      1978-08-31  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47439  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:48:47  

Additional Information
 Earth MOID = .849186 au 
 Jupiter MOID = 2.74621 au 
 T_jup = 3.594 
[ 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 14.0   n/a MPO395126  
diameter diameter 3.913 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12787 Abetadashi           Discovered 1995 Sept. 20 by K. Endate and K. Watanabe at Kitami.
Tadashi Abe (b. 1943), a Japanese amateur astronomer, taught high school from 1966 to 2004. He poured his considerable observational talents into the field of astronomical photometry, producing a number of scientific papers and a thesis based on his discoveries.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080321/MPCPages.arcLast Updated: 2008-03-26

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Alternate Designations
 1995 SR3 = 1944 QH = 1978 QM2 = 1997 AU22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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