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JPL Small-Body Database Browser
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5838 Hamsun (2170 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2005838
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1370845952751092 4.837e-08  
a 2.549254027257121 1.1593e-08 au
q 2.199790570677136 1.2263e-07 au
i 14.36843322820074 4.3115e-06 deg
node 186.5022817011609 2.0557e-05 deg
peri 59.40340525292957 2.4615e-05 deg
M 273.1933537414455 1.5277e-05 deg
tp 2459358.983007914250
(2021-May-24.48300791)
6.3602e-05 TDB
period 1486.682050412843
4.07
1.0141e-05
2.776e-08
d
yr
n .2421499606456068 1.6518e-09 deg/d
Q 2.898717483837105 1.3182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1673  
   data-arc span      16938 days (46.37 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:48:09  

Additional Information
 Earth MOID = 1.22565 au 
 Jupiter MOID = 2.16665 au 
 T_jup = 3.384 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456721.5 (2014-Mar-05.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379316081378388 4.8227e-08  
q 2.197246606950056 1.224e-07 au
tp 2456386.498678645664
(2013-Apr-03.99867865)
6.195e-05 TDB
node 186.5334987736133 2.0564e-05 deg
peri 59.5251863564504 2.4599e-05 deg
i 14.36671335006422 4.3105e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1673  
   data-arc span      16938 days (46.37 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:48:09  

Additional Information
 Jupiter MOID = 2.16665 au 
 T_jup = 3.384 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.325816858503679E-15 -5.883479376321923E-15 3.325848105638527E-13 -8.058817779563999E-15 6.147048601060855E-14 -6.060858735071842E-15
q -5.883479376321923E-15 1.498091946328154E-14 -9.082160390996078E-13 2.0374252889637E-14 -1.658923412405296E-13 1.584527420365592E-14
tp 3.325848105638527E-13 -9.082160390996078E-13 3.837829087435685E-9 2.532263858258787E-11 8.727984750817183E-10 -9.257054733841353E-13
node -8.058817779563999E-15 2.0374252889637E-14 2.532263858258787E-11 4.228641201689976E-10 -4.031046417654668E-10 2.320924201663892E-11
peri 6.147048601060855E-14 -1.658923412405296E-13 8.727984750817183E-10 -4.031046417654668E-10 6.050986881254013E-10 -2.256804295300434E-11
i -6.060858735071842E-15 1.584527420365592E-14 -9.257054733841353E-13 2.320924201663892E-11 -2.256804295300434E-11 1.85800096142356E-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 13.5   n/a MPO452249  
diameter diameter 4.882 km 0.507 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.355   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5838 Hamsun (2170 T-2)          Discovered 1973-Sep-29 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 2170 T-2 = 1988 FG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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