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74900 (1999 TO124)
Classification: Main-belt Asteroid          SPK-ID: 2074900
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054822056399147 4.2336e-08  
a 2.434943521057426 1.2659e-08 au
q 2.178100307847668 1.0417e-07 au
i 9.564492456096422 5.157e-06 deg
node 323.3876822189505 2.464e-05 deg
peri 246.8169442889098 3.2857e-05 deg
M 309.8264381129603 2.3374e-05 deg
tp 2459193.921255313956
(2020-Dec-10.42125531)
9.0461e-05 TDB
period 1387.815600371209
3.80
1.0822e-05
2.963e-08
d
yr
n .2594004563024858 2.0228e-09 deg/d
Q 2.691786734267183 1.3994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      9946 days (27.23 yr)  
   first obs. used      1993-01-25  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:15  

Additional Information
 Earth MOID = 1.19488 au 
 Jupiter MOID = 2.34126 au 
 T_jup = 3.479 
[ 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 15.2   n/a MPO453162  
diameter diameter 2.302 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74900 (1999 TO124)          Discovered 1999-Oct-04 by LINEAR at Socorro
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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