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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05806235294045381 4.1944e-08  
a 2.717528390582657 1.7563e-08 au
q 2.559742298042943 1.1207e-07 au
i 3.686822588599896 4.3791e-06 deg
node 152.3547446186998 7.7002e-05 deg
peri 303.6397064807662 9.1943e-05 deg
M 272.1318027588164 5.4005e-05 deg
tp 2459399.882266480590
(2021-Jul-04.38226648)		 0.00024673 TDB
period 1636.287308118619
4.48		 1.5862e-05
4.343e-08		 d
yr
n .2200102623871862 2.1328e-09 deg/d
Q 2.87531448312237 1.8582e-08 au
   Orbit Determination Parameters
   # obs. used (total)      628  
   data-arc span      10261 days (28.09 yr)  
   first obs. used      1991-04-08  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59195  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:53  

Additional Information
 Earth MOID = 1.57883 au 
 Jupiter MOID = 2.21091 au 
 T_jup = 3.355 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456423.5 (2013-May-11.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05727331599454389 4.1618e-08  
q 2.562197326873263 1.1121e-07 au
tp 2456112.257255959745
(2012-Jul-03.75725596)		 0.00024266 TDB
node 152.505363183477 7.7043e-05 deg
peri 300.751924739216 9.2554e-05 deg
i 3.685456653059184 4.3798e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      628  
   data-arc span      10261 days (28.09 yr)  
   first obs. used      1991-04-08  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59195  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:53  

Additional Information
 Jupiter MOID = 2.21091 au 
 T_jup = 3.355 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.732072541962065E-15 -4.57769200444411E-15 2.886202726708959E-13 5.728780196474659E-15 1.107004742074459E-14 1.816193532298805E-15
q -4.57769200444411E-15 1.236761681305638E-14 1.791515783565188E-13 -1.470931927259302E-14 1.776219193154318E-13 -4.674661588570698E-15
tp 2.886202726708959E-13 1.791515783565188E-13 5.888613188362432E-8 1.550068408452647E-11 1.247595469913046E-8 -6.958443953874715E-12
node 5.728780196474659E-15 -1.470931927259302E-14 1.550068408452647E-11 5.935641635172885E-9 -5.91991402755692E-9 5.564032125928098E-11
peri 1.107004742074459E-14 1.776219193154318E-13 1.247595469913046E-8 -5.91991402755692E-9 8.566169721781968E-9 -5.70313754297599E-11
i 1.816193532298805E-15 -4.674661588570698E-15 -6.958443953874715E-12 5.564032125928098E-11 -5.70313754297599E-11 1.9182995663002E-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 15.4   n/a MPO337645  
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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