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74962 (1999 TW200)
Classification: Main-belt Asteroid          SPK-ID: 2074962
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2514449059396061 4.9138e-08  
a 2.359075927139533 9.6066e-09 au
q 1.765898302535545 1.1827e-07 au
i 4.207845183002262 5.5309e-06 deg
node 302.9419690047399 5.3929e-05 deg
peri 29.82422074256381 5.4539e-05 deg
M 153.8328554307437 9.3144e-06 deg
tp 2458034.967059925408
(2017-Oct-08.46705993)
3.2591e-05 TDB
period 1323.461479388006
3.62
8.084e-06
2.213e-08
d
yr
n .2720139615748174 1.6615e-09 deg/d
Q 2.952253551743522 1.2022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      7147 days (19.57 yr)  
   first obs. used      1999-07-16  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59256  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:52:04  

Additional Information
 Earth MOID = .755995 au 
 Jupiter MOID = 2.42317 au 
 T_jup = 3.506 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO263910  
diameter diameter 4.347 km 0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74962 (1999 TW200)          Discovered 1999-Oct-13 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TW200 = 1999 RD55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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