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43854 (1993 TO31)
Classification: Main-belt Asteroid          SPK-ID: 2043854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2059580471283106 3.0922e-08  
a 2.364554604049584 9.767e-09 au
q 1.877555555471276 7.435e-08 au
i 8.035066006104916 4.1722e-06 deg
node 47.74883134962063 2.5381e-05 deg
peri 267.1962153315825 2.8244e-05 deg
M 270.7919705683094 1.5764e-05 deg
tp 2459725.596977359402
(2022-May-26.09697736)
5.9299e-05 TDB
period 1328.074531005132
3.64
8.2286e-06
2.253e-08
d
yr
n .2710691242061088 1.6795e-09 deg/d
Q 2.851553652627892 1.1779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1808  
   data-arc span      10110 days (27.68 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49831  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:40:48  

Additional Information
 Earth MOID = .884426 au 
 Jupiter MOID = 2.48 au 
 T_jup = 3.507 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457010.5 (2014-Dec-19.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2067838340648894 3.0964e-08  
q 1.875590370086788 7.4512e-08 au
tp 2457068.889966310324
(2015-Feb-15.38996631)
5.1474e-05 TDB
node 47.78810404413269 2.5392e-05 deg
peri 267.1467826003109 2.8236e-05 deg
i 8.034590022302449 4.1719e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1808  
   data-arc span      10110 days (27.68 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49831  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:40:48  

Additional Information
 Jupiter MOID = 2.48 au 
 T_jup = 3.507 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.587519569129209E-16 -2.295016040789055E-15 3.960601606273811E-13 6.271722287137315E-16 1.089753027681601E-13 1.400574330370577E-15
q -2.295016040789055E-15 5.552054966836979E-15 -8.056247607486647E-13 -2.232235606886515E-15 -2.28247363989439E-13 -3.003762023251994E-15
tp 3.960601606273811E-13 -8.056247607486647E-13 2.649541666503871E-9 -4.529572875304775E-12 6.482972562082136E-10 1.88387903918975E-12
node 6.271722287137315E-16 -2.232235606886515E-15 -4.529572875304775E-12 6.447734924776163E-10 -6.391763765353457E-10 -3.644571186750487E-11
peri 1.089753027681601E-13 -2.28247363989439E-13 6.482972562082136E-10 -6.391763765353457E-10 7.972437402080876E-10 3.655986709441612E-11
i 1.400574330370577E-15 -3.003762023251994E-15 1.88387903918975E-12 -3.644571186750487E-11 3.655986709441612E-11 1.740450542285188E-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 14.38   n/a MPCxxxxx  
diameter diameter 3.579 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.457   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43854 (1993 TO31)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 TO31 = 2000 SB357 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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