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74814 (1999 TD8)
Classification: Main-belt Asteroid          SPK-ID: 2074814
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .204780628116644 4.0055e-08  
a 2.329483379521677 8.1267e-09 au
q 1.852450309875945 9.5881e-08 au
i .8439353113786188 4.1104e-06 deg
node 37.44731192455692 0.00028296 deg
peri 358.257800826633 0.00028325 deg
M 281.4460225054787 1.5431e-05 deg
tp 2459283.869778254042
(2021-Mar-10.36977825)
5.6781e-05 TDB
period 1298.637235505611
3.56
6.7957e-06
1.861e-08
d
yr
n .2772136745792891 1.4506e-09 deg/d
Q 2.806516449167408 9.7909e-09 au
  Orbit Determination Parameters
   # obs. used (total)      872  
   data-arc span      14183 days (38.83 yr)  
   first obs. used      1981-09-29  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53561  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:14:16  

Additional Information
 Earth MOID = .859323 au 
 Jupiter MOID = 2.62101 au 
 T_jup = 3.543 
[ 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 15.9   n/a MPO267935  

74814 (1999 TD8)          Discovered 1999-Oct-05 by Juels, C. W. at Fountain Hills
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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