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74842 (1999 TS38)
Classification: Main-belt Asteroid          SPK-ID: 2074842
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1830465730648531 3.8745e-08  
a 2.374282039360532 1.0028e-08 au
q 1.939677848566156 9.5611e-08 au
i 1.387865156793037 3.769e-06 deg
node 32.79033273910755 0.00017191 deg
peri 317.879760848286 0.00017222 deg
M 245.8054387781895 1.2269e-05 deg
tp 2459424.376956211839
(2021-Jul-28.87695621)
4.7112e-05 TDB
period 1336.27821328427
3.66
8.4654e-06
2.318e-08
d
yr
n .2694049760155868 1.7067e-09 deg/d
Q 2.808886230154908 1.1863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      7514 days (20.57 yr)  
   first obs. used      1999-10-01  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56238  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:08:57  

Additional Information
 Earth MOID = .93406 au 
 Jupiter MOID = 2.61662 au 
 T_jup = 3.519 
[ 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 16.3   n/a MPO468696  
diameter diameter 3.249 km 0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74842 (1999 TS38)          Discovered 1999-Oct-01 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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