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JPL Small-Body Database Browser
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13756 (1998 ST72)
Classification: Main-belt Asteroid          SPK-ID: 2013756
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .09025438798464475 4.1755e-08  
a 2.950081701573245 1.59e-08 au
q 2.683823883093053 1.2513e-07 au
i 3.172884388145336 4.0273e-06 deg
node 95.34451125245155 9.6969e-05 deg
peri 317.03366676 0.00010169 deg
M 72.48745486650705 2.9189e-05 deg
tp 2458627.842519739360
(2019-May-24.34251974)
0.00014988 TDB
period 1850.757391618917
5.07
1.4962e-05
4.096e-08
d
yr
n .1945149599997526 1.5725e-09 deg/d
Q 3.216339520053438 1.7335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1184  
   data-arc span      10490 days (28.72 yr)  
   first obs. used      1991-05-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:44:38  

Additional Information
 Earth MOID = 1.69595 au 
 Jupiter MOID = 2.08663 au 
 T_jup = 3.261 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456681.5 (2014-Jan-24.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0865271428991989 4.1343e-08  
q 2.694360494179501 1.2322e-07 au
tp 2456777.551988176333
(2014-Apr-30.05198818)
0.00015791 TDB
node 95.45992709506618 9.6786e-05 deg
peri 317.19794551756 0.00010197 deg
i 3.175091432976805 4.0315e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1184  
   data-arc span      10490 days (28.72 yr)  
   first obs. used      1991-05-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:44:38  

Additional Information
 Jupiter MOID = 2.08663 au 
 T_jup = 3.261 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.709207653647095E-15 -5.059070021950242E-15 -2.181845463385939E-12 1.085095640150609E-14 -4.937516016940631E-13 -3.280680663751586E-16
q -5.059070021950242E-15 1.518299915649042E-14 6.259934965657549E-12 -3.301148456148091E-14 1.420676846639968E-12 1.113774592165978E-15
tp -2.181845463385939E-12 6.259934965657549E-12 2.493479134057591E-8 -1.2581649257466E-11 5.114124508885414E-9 2.274522580732699E-12
node 1.085095640150609E-14 -3.301148456148091E-14 -1.2581649257466E-11 9.367455723939719E-9 -9.355339920395572E-9 2.349324392608268E-11
peri -4.937516016940631E-13 1.420676846639968E-12 5.114124508885414E-9 -9.355339920395572E-9 1.039841841608102E-8 -2.29954306004612E-11
i -3.280680663751586E-16 1.113774592165978E-15 2.274522580732699E-12 2.349324392608268E-11 -2.29954306004612E-11 1.625312280747959E-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 14.5   n/a MPO458955  
diameter diameter 3.409 km 0.573 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.419   0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13756 (1998 ST72)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 ST72 = 1996 LN4 = 1998 UV37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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