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48778 Shokoyukako (1997 RE)
Classification: Main-belt Asteroid          SPK-ID: 2048778
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1600665252354745 4.0663e-08  
a 2.797070980814747 1.4314e-08 au
q 2.34935354807875 1.1497e-07 au
i 9.853953265791707 4.1592e-06 deg
node 152.3076323161544 2.4573e-05 deg
peri 206.1667146669411 2.7074e-05 deg
M 299.3567048107935 1.2484e-05 deg
tp 2459288.328602482936
(2021-Mar-14.82860248)		 6.025e-05 TDB
period 1708.652153062738
4.68		 1.3116e-05
3.591e-08		 d
yr
n .2106923866011607 1.6173e-09 deg/d
Q 3.244788413550744 1.6605e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      9358 days (25.62 yr)  
   first obs. used      1995-03-05  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53948  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:49  

Additional Information
 Earth MOID = 1.34907 au 
 Jupiter MOID = 2.20261 au 
 T_jup = 3.286 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456947.5 (2014-Oct-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1609240480479669 4.0708e-08  
q 2.344087217709324 1.1498e-07 au
tp 2457585.258360952722
(2016-Jul-15.75836095)		 5.5221e-05 TDB
node 152.3885332632213 2.4594e-05 deg
peri 206.9020766148755 2.7071e-05 deg
i 9.853087278474744 4.1602e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      9358 days (25.62 yr)  
   first obs. used      1995-03-05  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53948  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:49  

Additional Information
 Jupiter MOID = 2.20261 au 
 T_jup = 3.286 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.657162628346571E-15 -4.655265536465511E-15 3.979863277943974E-13 5.541342843451333E-15 1.040263300407837E-13 -6.408287060288913E-17
q -4.655265536465511E-15 1.322050022311035E-14 -9.5188208577467E-13 -1.384295810890098E-14 -2.727234176851384E-13 1.045242039427326E-15
tp 3.979863277943974E-13 -9.5188208577467E-13 3.049331882207465E-9 1.000410543192621E-11 6.439626723934208E-10 2.343981480171508E-12
node 5.541342843451333E-15 -1.384295810890098E-14 1.000410543192621E-11 6.048817992784162E-10 -5.934429639293222E-10 2.628707921826652E-11
peri 1.040263300407837E-13 -2.727234176851384E-13 6.439626723934208E-10 -5.934429639293222E-10 7.328233181344203E-10 -2.546202379590938E-11
i -6.408287060288913E-17 1.045242039427326E-15 2.343981480171508E-12 2.628707921826652E-11 -2.546202379590938E-11 1.730744231259766E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO436124  
diameter diameter 3.946 km 1.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.216   0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48778 Shokoyukako           Discovered 1997 Sept. 1 by H. Abe at Yatsuka.
Shoko (b. 1989) and Yukako Abe (b. 1992) are the discoverer's daughters.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

Alternate Designations
 1997 RE = 2001 KP46 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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