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74977 (1999 TC233)
Classification: Main-belt Asteroid          SPK-ID: 2074977
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07366992055424741 4.0327e-08  
a 2.441992913132939 1.1217e-08 au
q 2.262091489228401 9.7868e-08 au
i 14.88748165393272 3.9775e-06 deg
node 113.4865257389965 1.7812e-05 deg
peri 295.6531354548623 3.6355e-05 deg
M 139.7084972233137 3.0969e-05 deg
tp 2458459.577126839770
(2018-Dec-07.07712684)
0.00011984 TDB
period 1393.846746675812
3.82
9.6041e-06
2.629e-08
d
yr
n .258278035844733 1.7796e-09 deg/d
Q 2.621894337037479 1.2044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1213  
   data-arc span      7533 days (20.62 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48066  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:35  

Additional Information
 Earth MOID = 1.31393 au 
 Jupiter MOID = 2.62928 au 
 T_jup = 3.451 
[ show covariance matrix ]

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 14.9   n/a MPO453162  
diameter diameter 2.641 km 0.955 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74977 (1999 TC233)          Discovered 1999-Oct-07 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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