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48551 (1993 TR28)
Classification: Main-belt Asteroid          SPK-ID: 2048551
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05820002693671547 3.4484e-08  
a 2.717852615775206 1.2639e-08 au
q 2.559673520327066 9.8278e-08 au
i 3.686751540679779 3.3879e-06 deg
node 152.353583860413 6.5411e-05 deg
peri 303.57437393 7.53e-05 deg
M 316.2085596217981 3.8134e-05 deg
tp 2459399.578339330339
(2021-Jul-04.07833933)
0.00017338 TDB
period 1636.580152193311
4.48
1.1416e-05
3.126e-08
d
yr
n .2199708945006668 1.5344e-09 deg/d
Q 2.876031711223345 1.3374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      10871 days (29.76 yr)  
   first obs. used      1991-04-08  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:56:45  

Additional Information
 Earth MOID = 1.57855 au 
 Jupiter MOID = 2.20988 au 
 T_jup = 3.355 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457406.5 (2016-Jan-19.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05677502783407232 3.4606e-08  
q 2.564677263067682 9.8424e-08 au
tp 2457752.129243104464
(2016-Dec-29.62924310)
0.00017772 TDB
node 152.4919954387934 6.5429e-05 deg
peri 301.30003229127 7.5756e-05 deg
i 3.685658217398801 3.3887e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      10871 days (29.76 yr)  
   first obs. used      1991-04-08  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:56:45  

Additional Information
 Jupiter MOID = 2.20988 au 
 T_jup = 3.355 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.197585202551463E-15 -3.383489493797831E-15 -1.874934213720188E-12 1.113866682635762E-14 -3.953118796983763E-13 4.637257086664351E-16
q -3.383489493797831E-15 9.687341526175343E-15 5.012967358912146E-12 -3.160892543894182E-14 1.048382743148813E-12 -1.135209839809863E-15
tp -1.874934213720188E-12 5.012967358912146E-12 3.158527299430147E-8 -1.063841852966377E-11 6.8111313219101E-9 1.064008055033634E-12
node 1.113866682635762E-14 -3.160892543894182E-14 -1.063841852966377E-11 4.280994421126118E-9 -4.2739650103992E-9 4.054573622047291E-11
peri -3.953118796983763E-13 1.048382743148813E-12 6.8111313219101E-9 -4.2739650103992E-9 5.738896641501248E-9 -4.024110977042467E-11
i 4.637257086664351E-16 -1.135209839809863E-15 1.064008055033634E-12 4.054573622047291E-11 -4.024110977042467E-11 1.148298955676006E-11

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 15.39   n/a E2021B10  
diameter diameter 3.259 km 0.880 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48551 (1993 TR28)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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