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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2044962716935371 3.8718e-08  
a 2.328402826751118 7.0451e-09 au
q 1.852253129679822 9.3319e-08 au
i .8439416192027505 3.4034e-06 deg
node 37.43095413605276 0.00027593 deg
peri 358.361730433426 0.00027622 deg
M 336.8070870273005 1.4799e-05 deg
tp 2459284.106183941778
(2021-Mar-10.60618394)
5.3624e-05 TDB
period 1297.733762657098
3.55
5.8899e-06
1.613e-08
d
yr
n .2774066687321931 1.259e-09 deg/d
Q 2.804552523822414 8.4858e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1019  
   data-arc span      14357 days (39.31 yr)  
   first obs. used      1981-09-29  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51897  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:15:47  

Additional Information
 Earth MOID = .858057 au 
 Jupiter MOID = 2.62372 au 
 T_jup = 3.544 
[ 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 15.98   n/a E2021B10  

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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