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18273 (3140 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2018273
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04052008886751832 3.8759e-08  
a 2.203331558597137 6.4942e-09 au
q 2.114052368038174 8.5789e-08 au
i .2515295214698079 3.7054e-06 deg
node 267.4738869161916 0.00092815 deg
peri 46.98224646600566 0.00092919 deg
M 195.4252567284354 4.4251e-05 deg
tp 2459942.608447911833
(2022-Dec-29.10844791)
0.00014703 TDB
period 1194.588169120531
3.27
5.2815e-06
1.446e-08
d
yr
n .3013590870107445 1.3324e-09 deg/d
Q 2.292610749156101 6.7573e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      25364 days (69.44 yr)  
   first obs. used      1951-11-28  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:08:07  

Additional Information
 Earth MOID = 1.09931 au 
 Jupiter MOID = 2.78457 au 
 T_jup = 3.662 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456684.5 (2014-Jan-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04073916966447252 3.8606e-08  
q 2.113161420156278 8.5409e-08 au
tp 2456356.536611674902
(2013-Mar-05.03661167)
0.00014624 TDB
node 267.7676587527174 0.0009272 deg
peri 45.92027663546109 0.00092824 deg
i .251544587942426 3.7093e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      25364 days (69.44 yr)  
   first obs. used      1951-11-28  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:08:07  

Additional Information
 Jupiter MOID = 2.78457 au 
 T_jup = 3.662 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.49038800290419E-15 -3.288542285551671E-15 6.116903212010935E-13 4.447251299318985E-15 1.877265208536456E-13 1.735003862471138E-17
q -3.288542285551671E-15 7.294775319095975E-15 -1.356814920469358E-12 -8.279592444105315E-15 -4.158576887376211E-13 -2.880246820326493E-17
tp 6.116903212010935E-13 -1.356814920469358E-12 2.138521322446531E-8 -5.761405234457997E-12 6.435749512484046E-9 1.493269678517189E-13
node 4.447251299318985E-15 -8.279592444105315E-15 -5.761405234457997E-12 8.597015596878417E-7 -8.596942067238119E-7 6.318097559344445E-10
peri 1.877265208536456E-13 -4.158576887376211E-13 6.435749512484046E-9 -8.596942067238119E-7 8.616281000816546E-7 -6.317558870155717E-10
i 1.735003862471138E-17 -2.880246820326493E-17 1.493269678517189E-13 6.318097559344445E-10 -6.317558870155717E-10 1.375884708273984E-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 15.62   n/a MPCxxxxx  

18273 (3140 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 3140 T-3 = 1992 EJ10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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